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10212220032 = 27377948091
BaseRepresentation
bin10011000001011001…
…00001110010000000
3222100201002112021120
421200230201302000
5131403312020112
64405203152240
7511032303150
oct114054416200
928321075246
1010212220032
114370594073
121b90075680
13c69962961
146cc406760
153eb82ce8c
hex260b21c80

10212220032 has 128 divisors (see below), whose sum is σ = 31394457600. Its totient is φ = 2880783360.

The previous prime is 10212220009. The next prime is 10212220033. The reversal of 10212220032 is 23002221201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 10212219993 and 10212220020.

It is not an unprimeable number, because it can be changed into a prime (10212220033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188307 + ... + 236397.

It is an arithmetic number, because the mean of its divisors is an integer number (245269200).

Almost surely, 210212220032 is an apocalyptic number.

10212220032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10212220032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15697228800).

10212220032 is an abundant number, since it is smaller than the sum of its proper divisors (21182237568).

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

10212220032 is an equidigital number, since it uses as much as digits as its factorization.

10212220032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48194 (or 48182 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 10212220032 its reverse (23002221201), we get a palindrome (33214441233).

The spelling of 10212220032 in words is "ten billion, two hundred twelve million, two hundred twenty thousand, thirty-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 79 84 96 112 128 158 168 192 224 237 316 336 384 448 474 553 632 672 896 948 1106 1264 1344 1659 1896 2212 2528 2688 3318 3792 4424 5056 6636 7584 8848 10112 13272 15168 17696 26544 30336 35392 48091 53088 70784 96182 106176 144273 192364 212352 288546 336637 384728 577092 673274 769456 1009911 1154184 1346548 1538912 2019822 2308368 2693096 3077824 3799189 4039644 4616736 5386192 6155648 7598378 8079288 9233472 10772384 11397567 15196756 16158576 18466944 21544768 22795134 26594323 30393512 32317152 43089536 45590268 53188646 60787024 64634304 79782969 91180536 106377292 121574048 129268608 159565938 182361072 212754584 243148096 319131876 364722144 425509168 486296192 638263752 729444288 851018336 1276527504 1458888576 1702036672 2553055008 3404073344 5106110016 10212220032