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20704160052 = 22321531375647
BaseRepresentation
bin10011010010000100…
…000110100100110100
31222102220112022020200
4103102010012210310
5314400231110202
613302242000500
71332032312442
oct232204064464
958386468220
1020704160052
118864a5a984
124019946130
131c4c5426a4
141005a23b92
158129b0e1c
hex4d2106934

20704160052 has 36 divisors (see below), whose sum is σ = 52369838976. Its totient is φ = 6896860560.

The previous prime is 20704160051. The next prime is 20704160069. The reversal of 20704160052 is 25006140702.

20704160052 is a `hidden beast` number, since 2 + 0 + 7 + 0 + 4 + 1 + 600 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 20704159998 and 20704160025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20704160051) 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 11 ways as a sum of consecutive naturals, for example, 132708 + ... + 242939.

Almost surely, 220704160052 is an apocalyptic number.

It is an amenable number.

20704160052 is an abundant number, since it is smaller than the sum of its proper divisors (31665678924).

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

20704160052 is a wasteful number, since it uses less digits than its factorization.

20704160052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377188 (or 377183 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The spelling of 20704160052 in words is "twenty billion, seven hundred four million, one hundred sixty thousand, fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 1531 3062 4593 6124 9186 13779 18372 27558 55116 375647 751294 1126941 1502588 2253882 3380823 4507764 6761646 13523292 575115557 1150231114 1725346671 2300462228 3450693342 5176040013 6901386684 10352080026 20704160052