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26430845 = 572107881
BaseRepresentation
bin110010011010…
…0110101111101
31211201211022012
41210310311331
523231241340
62342301005
7440441600
oct144646575
954654265
1026430845
1113a12981
128a27765
13562556c
143720337
1524c1565
hex1934d7d

26430845 has 12 divisors (see below), whose sum is σ = 36895644. Its totient is φ = 18123840.

The previous prime is 26430829. The next prime is 26430857. The reversal of 26430845 is 54803462.

It can be written as a sum of positive squares in 2 ways, for example, as 7958041 + 18472804 = 2821^2 + 4298^2 .

It is not a de Polignac number, because 26430845 - 24 = 26430829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53696 + ... + 54185.

It is an arithmetic number, because the mean of its divisors is an integer number (3074637).

Almost surely, 226430845 is an apocalyptic number.

It is an amenable number.

26430845 is a deficient number, since it is larger than the sum of its proper divisors (10464799).

26430845 is a wasteful number, since it uses less digits than its factorization.

26430845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107900 (or 107893 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 26430845 is about 5141.0937552237. The cubic root of 26430845 is about 297.8770306265.

The spelling of 26430845 in words is "twenty-six million, four hundred thirty thousand, eight hundred forty-five".

Divisors: 1 5 7 35 49 245 107881 539405 755167 3775835 5286169 26430845