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20104474624 = 21213377563
BaseRepresentation
bin10010101110010100…
…011111000000000000
31220220010010010111021
4102232110133000000
5312133221141444
613122540355224
71311131133433
oct225624370000
956803103437
1020104474624
1185874a7393
123a90b45b14
131b85227040
14d8a11d81a
157ca006584
hex4ae51f000

20104474624 has 52 divisors (see below), whose sum is σ = 43296774136. Its totient is φ = 9278963712.

The previous prime is 20104474543. The next prime is 20104474631. The reversal of 20104474624 is 42647440102.

It is a tau number, because it is divible by the number of its divisors (52).

It is a self number, because there is not a number n which added to its sum of digits gives 20104474624.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 135534 + ... + 242029.

Almost surely, 220104474624 is an apocalyptic number.

It is an amenable number.

20104474624 is an abundant number, since it is smaller than the sum of its proper divisors (23192299512).

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

20104474624 is an equidigital number, since it uses as much as digits as its factorization.

20104474624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377600 (or 377578 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 34.

The spelling of 20104474624 in words is "twenty billion, one hundred four million, four hundred seventy-four thousand, six hundred twenty-four".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 128 208 256 416 512 832 1024 1664 2048 3328 4096 6656 13312 26624 53248 377563 755126 1510252 3020504 4908319 6041008 9816638 12082016 19633276 24164032 39266552 48328064 78533104 96656128 157066208 193312256 314132416 386624512 628264832 773249024 1256529664 1546498048 2513059328 5026118656 10052237312 20104474624