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55715079 = 376414139
BaseRepresentation
bin1101010010001…
…0010100000111
310212211121201110
43110202110013
5103230340304
65310100103
71244366430
oct324422407
9125747643
1055715079
11294a4622
12167aa633
13b709804
147584487
154d58289
hex3522507

55715079 has 16 divisors (see below), whose sum is σ = 85052160. Its totient is φ = 31779840.

The previous prime is 55715071. The next prime is 55715089. The reversal of 55715079 is 97051755.

It is not a de Polignac number, because 55715079 - 23 = 55715071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55715071) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11392 + ... + 15530.

It is an arithmetic number, because the mean of its divisors is an integer number (5315760).

Almost surely, 255715079 is an apocalyptic number.

55715079 is a deficient number, since it is larger than the sum of its proper divisors (29337081).

55715079 is a wasteful number, since it uses less digits than its factorization.

55715079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4790.

The product of its (nonzero) digits is 55125, while the sum is 39.

The square root of 55715079 is about 7464.2534120969. The cubic root of 55715079 is about 381.9362826942.

The spelling of 55715079 in words is "fifty-five million, seven hundred fifteen thousand, seventy-nine".

Divisors: 1 3 7 21 641 1923 4139 4487 12417 13461 28973 86919 2653099 7959297 18571693 55715079