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26808685 = 5231132063
BaseRepresentation
bin110011001000…
…1000101101101
31212110000121021
41212101011231
523330334220
62354334141
7443604301
oct146210555
955400537
1026808685
1114150842
128b8a351
135728537
1437bbd01
1525484aa
hex199116d

26808685 has 16 divisors (see below), whose sum is σ = 33882624. Its totient is φ = 20323072.

The previous prime is 26808671. The next prime is 26808697. The reversal of 26808685 is 58680862.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 26808685 - 25 = 26808653 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, 11964 + ... + 14026.

It is an arithmetic number, because the mean of its divisors is an integer number (2117664).

Almost surely, 226808685 is an apocalyptic number.

It is an amenable number.

26808685 is a deficient number, since it is larger than the sum of its proper divisors (7073939).

26808685 is a wasteful number, since it uses less digits than its factorization.

26808685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2204.

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 26808685 is about 5177.7104013261. The cubic root of 26808685 is about 299.2897457158.

The spelling of 26808685 in words is "twenty-six million, eight hundred eight thousand, six hundred eighty-five".

Divisors: 1 5 23 113 115 565 2063 2599 10315 12995 47449 233119 237245 1165595 5361737 26808685