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79680433 = 7191374373
BaseRepresentation
bin1001011111111…
…01001110110001
312112221012000011
410233331032301
5130344233213
611523454521
71655162320
oct457751661
9175835004
1079680433
1140a830a8
1222827441
131367aab1
14a8220b7
156ede03d
hex4bfd3b1

79680433 has 16 divisors (see below), whose sum is σ = 96577920. Its totient is φ = 64215936.

The previous prime is 79680413. The next prime is 79680437. The reversal of 79680433 is 33408697.

It is a cyclic number.

It is not a de Polignac number, because 79680433 - 25 = 79680401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79680437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16035 + ... + 20407.

It is an arithmetic number, because the mean of its divisors is an integer number (6036120).

Almost surely, 279680433 is an apocalyptic number.

It is an amenable number.

79680433 is a deficient number, since it is larger than the sum of its proper divisors (16897487).

79680433 is a wasteful number, since it uses less digits than its factorization.

79680433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4536.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 79680433 is about 8926.3896957281. The cubic root of 79680433 is about 430.3124338314.

The spelling of 79680433 in words is "seventy-nine million, six hundred eighty thousand, four hundred thirty-three".

Divisors: 1 7 19 133 137 959 2603 4373 18221 30611 83087 581609 599101 4193707 11382919 79680433