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27047073977 = 71132902981
BaseRepresentation
bin11001001100001000…
…011001100010111001
32120210221211201101122
4121030020121202321
5420343022331402
620231504355025
71645152223040
oct311410314271
976727751348
1027047073977
111051a406000
1252aa015a75
1327206831b1
1414481b7557
15a84782ca2
hex64c2198b9

27047073977 has 16 divisors (see below), whose sum is σ = 33999725184. Its totient is φ = 21075634800.

The previous prime is 27047073961. The next prime is 27047073979. The reversal of 27047073977 is 77937074072.

It is not a de Polignac number, because 27047073977 - 24 = 27047073961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27047073979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1442174 + ... + 1460807.

It is an arithmetic number, because the mean of its divisors is an integer number (2124982824).

Almost surely, 227047073977 is an apocalyptic number.

It is an amenable number.

27047073977 is a deficient number, since it is larger than the sum of its proper divisors (6952651207).

27047073977 is an equidigital number, since it uses as much as digits as its factorization.

27047073977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2903021 (or 2902999 counting only the distinct ones).

The product of its (nonzero) digits is 3630312, while the sum is 53.

The spelling of 27047073977 in words is "twenty-seven billion, forty-seven million, seventy-three thousand, nine hundred seventy-seven".

Divisors: 1 7 11 77 121 847 1331 9317 2902981 20320867 31932791 223529537 351260701 2458824907 3863867711 27047073977