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79425970 = 2513610969
BaseRepresentation
bin1001011101111…
…11000110110010
312112110020221121
410232333012302
5130313112340
611514212454
71653052411
oct456770662
9175406847
1079425970
11409199a8
122272412a
13135bc020
14a797478
156e8d94a
hex4bbf1b2

79425970 has 16 divisors (see below), whose sum is σ = 153964440. Its totient is φ = 29326464.

The previous prime is 79425967. The next prime is 79425991. The reversal of 79425970 is 7952497.

It can be written as a sum of positive squares in 4 ways, for example, as 24235929 + 55190041 = 4923^2 + 7429^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305355 + ... + 305614.

Almost surely, 279425970 is an apocalyptic number.

79425970 is a deficient number, since it is larger than the sum of its proper divisors (74538470).

79425970 is a wasteful number, since it uses less digits than its factorization.

79425970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610989.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 79425970 is about 8912.1248869167. The cubic root of 79425970 is about 429.8538713846.

The spelling of 79425970 in words is "seventy-nine million, four hundred twenty-five thousand, nine hundred seventy".

Divisors: 1 2 5 10 13 26 65 130 610969 1221938 3054845 6109690 7942597 15885194 39712985 79425970