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56979349 = 723547647
BaseRepresentation
bin1101100101011…
…0111110010101
310222012211222021
43121112332111
5104041314344
65353133141
71261213360
oct331267625
9128184867
1056979349
112a188479
12170ba1b1
13ba600bb
1477d30d7
155007b84
hex3656f95

56979349 has 16 divisors (see below), whose sum is σ = 68179968. Its totient is φ = 46558512.

The previous prime is 56979323. The next prime is 56979353. The reversal of 56979349 is 94397965.

It is not a de Polignac number, because 56979349 - 25 = 56979317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56979296 and 56979305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56979379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87744 + ... + 88390.

It is an arithmetic number, because the mean of its divisors is an integer number (4261248).

Almost surely, 256979349 is an apocalyptic number.

It is an amenable number.

56979349 is a deficient number, since it is larger than the sum of its proper divisors (11200619).

56979349 is a wasteful number, since it uses less digits than its factorization.

56979349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224.

The product of its digits is 1837080, while the sum is 52.

The square root of 56979349 is about 7548.4666654891. The cubic root of 56979349 is about 384.8036306735.

The spelling of 56979349 in words is "fifty-six million, nine hundred seventy-nine thousand, three hundred forty-nine".

Divisors: 1 7 23 161 547 647 3829 4529 12581 14881 88067 104167 353909 2477363 8139907 56979349