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79795138 = 2188921121
BaseRepresentation
bin1001100000110…
…01001111000010
312120011000100111
410300121033002
5130411421023
611530141534
71656150613
oct460311702
9176130314
1079795138
11410512a5
12228818aa
13136bb077
14a851c0a
15701300d
hex4c193c2

79795138 has 8 divisors (see below), whose sum is σ = 119761740. Its totient is φ = 39874560.

The previous prime is 79795109. The next prime is 79795141. The reversal of 79795138 is 83159797.

It can be written as a sum of positive squares in 2 ways, for example, as 78801129 + 994009 = 8877^2 + 997^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 79795091 and 79795100.

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 3 ways as a sum of consecutive naturals, for example, 6783 + ... + 14338.

Almost surely, 279795138 is an apocalyptic number.

79795138 is a deficient number, since it is larger than the sum of its proper divisors (39966602).

79795138 is a wasteful number, since it uses less digits than its factorization.

79795138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23012.

The product of its digits is 476280, while the sum is 49.

The square root of 79795138 is about 8932.8124350621. The cubic root of 79795138 is about 430.5188221071.

The spelling of 79795138 in words is "seventy-nine million, seven hundred ninety-five thousand, one hundred thirty-eight".

Divisors: 1 2 1889 3778 21121 42242 39897569 79795138