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18090672952 = 2311205575829
BaseRepresentation
bin10000110110010010…
…011100001100111000
31201200202210101221011
4100312102130030320
5244022203013302
612151041523304
71210206116512
oct206622341470
951622711834
1018090672952
117743793390
12360a643534
131923c59911
14c388b0bb2
1570d3195d7
hex43649c338

18090672952 has 16 divisors (see below), whose sum is σ = 37003649400. Its totient is φ = 8223033120.

The previous prime is 18090672913. The next prime is 18090672967. The reversal of 18090672952 is 25927609081.

It is a junction number, because it is equal to n+sod(n) for n = 18090672896 and 18090672905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102787827 + ... + 102788002.

Almost surely, 218090672952 is an apocalyptic number.

It is an amenable number.

18090672952 is an abundant number, since it is smaller than the sum of its proper divisors (18912976448).

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

18090672952 is a wasteful number, since it uses less digits than its factorization.

18090672952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205575846 (or 205575842 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 18090672952 in words is "eighteen billion, ninety million, six hundred seventy-two thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 11 22 44 88 205575829 411151658 822303316 1644606632 2261334119 4522668238 9045336476 18090672952