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26856361 = 72548089
BaseRepresentation
bin110011001110…
…0101110101001
31212112110000001
41212130232221
523333400421
62355343001
7444163300
oct146345651
955473001
1026856361
1114183644
128bb1a61
13574414c
1437d1437
152557691
hex199cba9

26856361 has 6 divisors (see below), whose sum is σ = 31241130. Its totient is φ = 23019696.

The previous prime is 26856337. The next prime is 26856383. The reversal of 26856361 is 16365862.

It can be written as a sum of positive squares in only one way, i.e., 25050025 + 1806336 = 5005^2 + 1344^2 .

It is not a de Polignac number, because 26856361 - 29 = 26855849 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 26856361.

It is not an unprimeable number, because it can be changed into a prime (26856331) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 273996 + ... + 274093.

It is an arithmetic number, because the mean of its divisors is an integer number (5206855).

Almost surely, 226856361 is an apocalyptic number.

It is an amenable number.

26856361 is a deficient number, since it is larger than the sum of its proper divisors (4384769).

26856361 is an equidigital number, since it uses as much as digits as its factorization.

26856361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548103 (or 548096 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 26856361 is about 5182.3123217344. The cubic root of 26856361 is about 299.4670575053.

The spelling of 26856361 in words is "twenty-six million, eight hundred fifty-six thousand, three hundred sixty-one".

Divisors: 1 7 49 548089 3836623 26856361