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72771463713 = 3132143533459
BaseRepresentation
bin100001111000110000…
…1000110101000100001
320221211120100101100210
41003301201012220201
52143013443314323
653233013004333
75154226143534
oct1036141065041
9227746311323
1072771463713
1128953659853
121212b0236a9
136b29692c00
143744b2ca1b
151d5dab0293
hex10f1846a21

72771463713 has 12 divisors (see below), whose sum is σ = 105066492720. Its totient is φ = 44782438896.

The previous prime is 72771463691. The next prime is 72771463733. The reversal of 72771463713 is 31736417727.

It is not a de Polignac number, because 72771463713 - 26 = 72771463649 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (72771463733) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71766223 + ... + 71767236.

It is an arithmetic number, because the mean of its divisors is an integer number (8755541060).

Almost surely, 272771463713 is an apocalyptic number.

It is an amenable number.

72771463713 is a deficient number, since it is larger than the sum of its proper divisors (32295029007).

72771463713 is a wasteful number, since it uses less digits than its factorization.

72771463713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143533488 (or 143533475 counting only the distinct ones).

The product of its digits is 1037232, while the sum is 48.

The spelling of 72771463713 in words is "seventy-two billion, seven hundred seventy-one million, four hundred sixty-three thousand, seven hundred thirteen".

Divisors: 1 3 13 39 169 507 143533459 430600377 1865934967 5597804901 24257154571 72771463713