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20210010231210 = 23531412711955827
BaseRepresentation
bin1001001100001100000100…
…11110110001000110101010
32122120001120100202121212020
410212012002132301012222
510122110100104344320
6110552203414125310
74154060615362302
oct446060236610652
978501510677766
1020210010231210
1164920209a1098
122324a03650836
13b37a46463237
144dc2539a6602
15250a97039940
hex1261827b11aa

20210010231210 has 128 divisors (see below), whose sum is σ = 51479145381888. Its totient is φ = 5069500992000.

The previous prime is 20210010231197. The next prime is 20210010231217. The reversal of 20210010231210 is 1213201001202.

It is a super-2 number, since 2×202100102312102 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20210010231210.

It is not an unprimeable number, because it can be changed into a prime (20210010231217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9355317 + ... + 11311143.

It is an arithmetic number, because the mean of its divisors is an integer number (402180823296).

Almost surely, 220210010231210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20210010231210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25739572690944).

20210010231210 is an abundant number, since it is smaller than the sum of its proper divisors (31269135150678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20210010231210 is a wasteful number, since it uses less digits than its factorization.

20210010231210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956180.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20210010231210 its reverse (1213201001202), we get a palindrome (21423211232412).

The spelling of 20210010231210 in words is "twenty trillion, two hundred ten billion, ten million, two hundred thirty-one thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 31 41 62 82 93 123 155 186 205 246 271 310 410 465 542 615 813 930 1230 1271 1355 1626 2542 2710 3813 4065 6355 7626 8130 8401 11111 12710 16802 19065 22222 25203 33333 38130 42005 50406 55555 66666 84010 111110 126015 166665 252030 333330 344441 688882 1033323 1722205 1955827 2066646 3444410 3911654 5166615 5867481 9779135 10333230 11734962 19558270 29337405 58674810 60630637 80188907 121261274 160377814 181891911 240566721 303153185 363783822 400944535 481133442 530029117 606306370 801889070 909459555 1060058234 1202833605 1590087351 1818919110 2405667210 2485856117 2650145585 3180174702 4971712234 5300291170 7457568351 7950436755 12429280585 14915136702 15900873510 16430902627 21731193797 24858561170 32861805254 37287841755 43462387594 49292707881 65193581391 74575683510 82154513135 98585415762 108655968985 130387162782 164309026270 217311937970 246463539405 325967906955 492927078810 651935813910 673667007707 1347334015414 2021001023121 3368335038535 4042002046242 6736670077070 10105005115605 20210010231210