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13495565 = 53772949
BaseRepresentation
bin110011011110…
…110100001101
3221101122102202
4303132310031
511423324230
61201131245
7222465446
oct63366415
927348382
1013495565
117688466
124629b25
132a46955
141b142cd
1512b8a45
hexcded0d

13495565 has 8 divisors (see below), whose sum is σ = 16632600. Its totient is φ = 10504512.

The previous prime is 13495561. The next prime is 13495591. The reversal of 13495565 is 56559431.

It can be written as a sum of positive squares in 4 ways, for example, as 8491396 + 5004169 = 2914^2 + 2237^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13495565 - 22 = 13495561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13495561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36290 + ... + 36659.

It is an arithmetic number, because the mean of its divisors is an integer number (2079075).

Almost surely, 213495565 is an apocalyptic number.

It is an amenable number.

13495565 is a deficient number, since it is larger than the sum of its proper divisors (3137035).

13495565 is an equidigital number, since it uses as much as digits as its factorization.

13495565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72991.

The product of its digits is 81000, while the sum is 38.

The square root of 13495565 is about 3673.6310375431. The cubic root of 13495565 is about 238.0840804073.

The spelling of 13495565 in words is "thirteen million, four hundred ninety-five thousand, five hundred sixty-five".

Divisors: 1 5 37 185 72949 364745 2699113 13495565