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79680475 = 527455317
BaseRepresentation
bin1001011111111…
…01001111011011
312112221012001201
410233331033123
5130344233400
611523455031
71655162410
oct457751733
9175835051
1079680475
1140a83136
1222827477
131367ab14
14a822107
156ede06a
hex4bfd3db

79680475 has 12 divisors (see below), whose sum is σ = 112918864. Its totient is φ = 54637920.

The previous prime is 79680451. The next prime is 79680493. The reversal of 79680475 is 57408697.

It is a happy number.

It is not a de Polignac number, because 79680475 - 25 = 79680443 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 227484 + ... + 227833.

Almost surely, 279680475 is an apocalyptic number.

79680475 is a deficient number, since it is larger than the sum of its proper divisors (33238389).

79680475 is a wasteful number, since it uses less digits than its factorization.

79680475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455334 (or 455329 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 79680475 is about 8926.3920483026. The cubic root of 79680475 is about 430.3125094381.

The spelling of 79680475 in words is "seventy-nine million, six hundred eighty thousand, four hundred seventy-five".

Divisors: 1 5 7 25 35 175 455317 2276585 3187219 11382925 15936095 79680475