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25268898 = 2319221657
BaseRepresentation
bin110000001100…
…1001010100010
31202112210102010
41200121022202
522432101043
62301333350
7424532154
oct140311242
952483363
1025268898
1113299996
128567256
135309715
1434daad4
152342133
hex18192a2

25268898 has 16 divisors (see below), whose sum is σ = 53197920. Its totient is φ = 7979616.

The previous prime is 25268869. The next prime is 25268909. The reversal of 25268898 is 89886252.

It is a super-2 number, since 2×252688982 = 1277034412268808, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110715 + ... + 110942.

It is an arithmetic number, because the mean of its divisors is an integer number (3324870).

Almost surely, 225268898 is an apocalyptic number.

25268898 is an abundant number, since it is smaller than the sum of its proper divisors (27929022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25268898 is a wasteful number, since it uses less digits than its factorization.

25268898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221681.

The product of its digits is 552960, while the sum is 48.

The square root of 25268898 is about 5026.8178801305. The cubic root of 25268898 is about 293.4463874941.

The spelling of 25268898 in words is "twenty-five million, two hundred sixty-eight thousand, eight hundred ninety-eight".

Divisors: 1 2 3 6 19 38 57 114 221657 443314 664971 1329942 4211483 8422966 12634449 25268898