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13072085 = 513832423
BaseRepresentation
bin110001110111…
…011011010101
3220121010112022
4301313123111
511321301320
61144102525
7216053015
oct61673325
926533468
1013072085
117419284
124464a45
132928c80
141a43c45
151233325
hexc776d5

13072085 has 16 divisors (see below), whose sum is σ = 17103744. Its totient is φ = 9532992.

The previous prime is 13072067. The next prime is 13072091. The reversal of 13072085 is 58027031.

It is a cyclic number.

It is not a de Polignac number, because 13072085 - 26 = 13072021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4184 + ... + 6606.

It is an arithmetic number, because the mean of its divisors is an integer number (1068984).

Almost surely, 213072085 is an apocalyptic number.

It is an amenable number.

13072085 is a deficient number, since it is larger than the sum of its proper divisors (4031659).

13072085 is a wasteful number, since it uses less digits than its factorization.

13072085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 13072085 is about 3615.5338471656. The cubic root of 13072085 is about 235.5672729707.

The spelling of 13072085 in words is "thirteen million, seventy-two thousand, eighty-five".

Divisors: 1 5 13 65 83 415 1079 2423 5395 12115 31499 157495 201109 1005545 2614417 13072085