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20104297312 = 2511173332957
BaseRepresentation
bin10010101110010011…
…110011101101100000
31220220002210010021011
4102232103303231200
5312133200003222
613122532510304
71311126464461
oct225623635540
956802703234
1020104297312
118587396150
123a90a7b394
131b85194418
14d8a0b4d68
157c9ebdc77
hex4ae4f3b60

20104297312 has 48 divisors (see below), whose sum is σ = 43204774032. Its totient is φ = 9132766720.

The previous prime is 20104297277. The next prime is 20104297403. The reversal of 20104297312 is 21379240102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 593538 + ... + 626494.

It is an arithmetic number, because the mean of its divisors is an integer number (900099459).

Almost surely, 220104297312 is an apocalyptic number.

20104297312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20104297312 is an abundant number, since it is smaller than the sum of its proper divisors (23100476720).

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

20104297312 is a wasteful number, since it uses less digits than its factorization.

20104297312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34711 (or 34703 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 20104297312 in words is "twenty billion, one hundred four million, two hundred ninety-seven thousand, three hundred twelve".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 1733 3466 6932 13864 19063 27728 32957 38126 55456 65914 76252 131828 152504 263656 305008 362527 527312 610016 725054 1054624 1450108 2900216 5800432 11600864 57114481 114228962 228457924 456915848 628259291 913831696 1256518582 1827663392 2513037164 5026074328 10052148656 20104297312