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20137845676 = 2213427390631
BaseRepresentation
bin10010110000010011…
…110010001110101100
31220222102220112222011
4102300103302032230
5312220242030201
613130131531004
71312014602224
oct226023621654
956872815864
1020137845676
1185a431a573
123aa0159a64
131b8c10c520
14d90729084
157ccde9151
hex4b04f23ac

20137845676 has 24 divisors (see below), whose sum is σ = 37961394464. Its totient is φ = 9292112640.

The previous prime is 20137845667. The next prime is 20137845731. The reversal of 20137845676 is 67654873102.

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, 176881 + ... + 267511.

Almost surely, 220137845676 is an apocalyptic number.

20137845676 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20137845676 is a deficient number, since it is larger than the sum of its proper divisors (17823548788).

20137845676 is a wasteful number, since it uses less digits than its factorization.

20137845676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94921 (or 94919 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 20137845676 in words is "twenty billion, one hundred thirty-seven million, eight hundred forty-five thousand, six hundred seventy-six".

Divisors: 1 2 4 13 26 52 4273 8546 17092 55549 90631 111098 181262 222196 362524 1178203 2356406 4712812 387266263 774532526 1549065052 5034461419 10068922838 20137845676