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20100110212 = 22713311781293
BaseRepresentation
bin10010101110000011…
…110101011110000100
31220212210220101122101
4102232003311132010
5312131112011322
613122303041444
71311046055260
oct225603653604
956783811571
1020100110212
118584a96336
123a8b5a0284
131b84359650
14d897050a0
157c9943327
hex4ae0f5784

20100110212 has 48 divisors (see below), whose sum is σ = 44689103872. Its totient is φ = 7695181440.

The previous prime is 20100110209. The next prime is 20100110311. The reversal of 20100110212 is 21201100102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 879363 + ... + 901930.

Almost surely, 220100110212 is an apocalyptic number.

It is an amenable number.

20100110212 is an abundant number, since it is smaller than the sum of its proper divisors (24588993660).

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

20100110212 is a wasteful number, since it uses less digits than its factorization.

20100110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781348 (or 1781346 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20100110212 its reverse (21201100102), we get a palindrome (41301210314).

The spelling of 20100110212 in words is "twenty billion, one hundred million, one hundred ten thousand, two hundred twelve".

Divisors: 1 2 4 7 13 14 26 28 31 52 62 91 124 182 217 364 403 434 806 868 1612 2821 5642 11284 1781293 3562586 7125172 12469051 23156809 24938102 46313618 49876204 55220083 92627236 110440166 162097663 220880332 324195326 386540581 648390652 717861079 773081162 1435722158 1546162324 2871444316 5025027553 10050055106 20100110212