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79795961 = 721628489
BaseRepresentation
bin1001100000110…
…01011011111001
312120011001110222
410300121123321
5130411432321
611530145425
71656153200
oct460313371
9176131428
1079795961
1141051983
1222882275
13136bb55b
14a852237
1570133ab
hex4c196f9

79795961 has 6 divisors (see below), whose sum is σ = 92823930. Its totient is φ = 68396496.

The previous prime is 79795931. The next prime is 79795973. The reversal of 79795961 is 16959797.

It can be written as a sum of positive squares in only one way, i.e., 55785961 + 24010000 = 7469^2 + 4900^2 .

It is not a de Polignac number, because 79795961 - 210 = 79794937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79795921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 814196 + ... + 814293.

It is an arithmetic number, because the mean of its divisors is an integer number (15470655).

Almost surely, 279795961 is an apocalyptic number.

It is an amenable number.

79795961 is a deficient number, since it is larger than the sum of its proper divisors (13027969).

79795961 is a wasteful number, since it uses less digits than its factorization.

79795961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628503 (or 1628496 counting only the distinct ones).

The product of its digits is 1071630, while the sum is 53.

The square root of 79795961 is about 8932.8585010622. The cubic root of 79795961 is about 430.5203022131.

The spelling of 79795961 in words is "seventy-nine million, seven hundred ninety-five thousand, nine hundred sixty-one".

Divisors: 1 7 49 1628489 11399423 79795961