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71079992 = 23172112477
BaseRepresentation
bin1000011110010…
…01100000111000
311221202020102022
410033021200320
5121144024432
611015254012
71522112204
oct417114070
9157666368
1071079992
11371394a5
121b97a308
1311959289
149623b04
156390b12
hex43c9838

71079992 has 32 divisors (see below), whose sum is σ = 141840720. Its totient is φ = 33277440.

The previous prime is 71079949. The next prime is 71080001. The reversal of 71079992 is 29997017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27458 + ... + 29934.

Almost surely, 271079992 is an apocalyptic number.

It is an amenable number.

71079992 is a deficient number, since it is larger than the sum of its proper divisors (70760728).

71079992 is a wasteful number, since it uses less digits than its factorization.

71079992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711 (or 2707 counting only the distinct ones).

The product of its (nonzero) digits is 71442, while the sum is 44.

The square root of 71079992 is about 8430.8950888977. The cubic root of 71079992 is about 414.2372246968.

The spelling of 71079992 in words is "seventy-one million, seventy-nine thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 17 34 68 136 211 422 844 1688 2477 3587 4954 7174 9908 14348 19816 28696 42109 84218 168436 336872 522647 1045294 2090588 4181176 8884999 17769998 35539996 71079992