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26805713 = 1119128257
BaseRepresentation
bin110011001000…
…0010111010001
31212102212112012
41212100113101
523330240323
62354312305
7443562524
oct146202721
955385465
1026805713
1114149590
128b88695
13572708c
1437babbb
152547678
hex19905d1

26805713 has 8 divisors (see below), whose sum is σ = 30781920. Its totient is φ = 23086080.

The previous prime is 26805697. The next prime is 26805721. The reversal of 26805713 is 31750862.

It is a happy number.

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 26805713 - 24 = 26805697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26805713.

It is not an unprimeable number, because it can be changed into a prime (26805743) 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 7 ways as a sum of consecutive naturals, for example, 63920 + ... + 64337.

It is an arithmetic number, because the mean of its divisors is an integer number (3847740).

Almost surely, 226805713 is an apocalyptic number.

It is an amenable number.

26805713 is a deficient number, since it is larger than the sum of its proper divisors (3976207).

26805713 is a wasteful number, since it uses less digits than its factorization.

26805713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128287.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 26805713 is about 5177.4233939287. The cubic root of 26805713 is about 299.2786855936.

The spelling of 26805713 in words is "twenty-six million, eight hundred five thousand, seven hundred thirteen".

Divisors: 1 11 19 209 128257 1410827 2436883 26805713