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20020210210 = 25711134148781
BaseRepresentation
bin10010101001010011…
…000010101000100010
31220200020120001110001
4102221103002220202
5312000133211320
613110330330214
71306055656540
oct225123025042
956606501401
1020020210210
118543983280
123a6888996a
131b70932940
14d7cc66d90
157c290e20a
hex4a94c2a22

20020210210 has 128 divisors (see below), whose sum is σ = 49565634048. Its totient is φ = 5619456000.

The previous prime is 20020210181. The next prime is 20020210213. The reversal of 20020210210 is 1201202002.

It is a Harshad number since it is a multiple of its sum of digits (10).

20020210210 is a modest number, since divided by 210210 gives 20020 as remainder.

It is not an unprimeable number, because it can be changed into a prime (20020210213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 386020 + ... + 434800.

It is an arithmetic number, because the mean of its divisors is an integer number (387231516).

Almost surely, 220020210210 is an apocalyptic number.

20020210210 is an abundant number, since it is smaller than the sum of its proper divisors (29545423838).

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

20020210210 is a wasteful number, since it uses less digits than its factorization.

20020210210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48860.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20020210210 its reverse (1201202002), we get a palindrome (21221412212).

The spelling of 20020210210 in words is "twenty billion, twenty million, two hundred ten thousand, two hundred ten".

Divisors: 1 2 5 7 10 11 13 14 22 26 35 41 55 65 70 77 82 91 110 130 143 154 182 205 286 287 385 410 451 455 533 574 715 770 902 910 1001 1066 1430 1435 2002 2255 2665 2870 3157 3731 4510 5005 5330 5863 6314 7462 10010 11726 15785 18655 29315 31570 37310 41041 48781 58630 82082 97562 205205 243905 341467 410410 487810 536591 634153 682934 1073182 1268306 1707335 2000021 2682955 3170765 3414670 3756137 4000042 4439071 5365910 6341530 6975683 7512274 8878142 10000105 13951366 14000147 18780685 20000210 22000231 22195355 26000273 28000294 34878415 37561370 44000462 44390710 48829781 52000546 69756830 70000735 97659562 110001155 130001365 140001470 154001617 182001911 220002310 244148905 260002730 286003003 308003234 364003822 488297810 572006006 770008085 910009555 1430015015 1540016170 1820019110 2002021021 2860030030 4004042042 10010105105 20020210210