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13100020031997 = 33485185927111
BaseRepresentation
bin1011111010100001011000…
…0010100110000111111101
31201101100102220211121021000
42332220112002212013331
53204112320112010442
643510022141000513
72521305465011253
oct276502602460775
951340386747230
1013100020031997
1141a0761878168
121576a56253139
1374043268c9c2
143340899bc5d3
1517ab6552bd4c
hexbea160a61fd

13100020031997 has 8 divisors (see below), whose sum is σ = 19407437084480. Its totient is φ = 8733346687980.

The previous prime is 13100020031971. The next prime is 13100020032019. The reversal of 13100020031997 is 79913002000131.

It is a happy number.

13100020031997 is a `hidden beast` number, since 1 + 310 + 0 + 0 + 20 + 0 + 319 + 9 + 7 = 666.

It is not a de Polignac number, because 13100020031997 - 211 = 13100020029949 is a prime.

It is a super-2 number, since 2×131000200319972 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13100020031947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242592963529 + ... + 242592963582.

It is an arithmetic number, because the mean of its divisors is an integer number (2425929635560).

Almost surely, 213100020031997 is an apocalyptic number.

It is an amenable number.

13100020031997 is a deficient number, since it is larger than the sum of its proper divisors (6307417052483).

13100020031997 is an equidigital number, since it uses as much as digits as its factorization.

13100020031997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485185927120 (or 485185927114 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The spelling of 13100020031997 in words is "thirteen trillion, one hundred billion, twenty million, thirty-one thousand, nine hundred ninety-seven".

Divisors: 1 3 9 27 485185927111 1455557781333 4366673343999 13100020031997