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18505056020124 = 2236789692566199
BaseRepresentation
bin1000011010100100010110…
…10010100110011010011100
32102112001210011121210122210
410031102023102212122130
54411141323320120444
6103205034432240420
73616642352610522
oct415221322463234
972461704553583
1018505056020124
115994a4a774483
1220aa4a19a0110
13a4303351161b
1447d9142b6312
1522155b80b7b9
hex10d48b4a669c

18505056020124 has 48 divisors (see below), whose sum is σ = 43827821856000. Its totient is φ = 6075607207296.

The previous prime is 18505056020069. The next prime is 18505056020153. The reversal of 18505056020124 is 42102065050581.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5927977 + ... + 8494175.

It is an arithmetic number, because the mean of its divisors is an integer number (913079622000).

Almost surely, 218505056020124 is an apocalyptic number.

It is an amenable number.

18505056020124 is an abundant number, since it is smaller than the sum of its proper divisors (25322765835876).

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

18505056020124 is a wasteful number, since it uses less digits than its factorization.

18505056020124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575242 (or 2575240 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 39.

The spelling of 18505056020124 in words is "eighteen trillion, five hundred five billion, fifty-six million, twenty thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 12 67 134 201 268 402 804 8969 17938 26907 35876 53814 107628 600923 1201846 1802769 2403692 2566199 3605538 5132398 7211076 7698597 10264796 15397194 30794388 171935333 343870666 515805999 687741332 1031611998 2063223996 23016238831 46032477662 69048716493 92064955324 138097432986 276194865972 1542088001677 3084176003354 4626264005031 6168352006708 9252528010062 18505056020124