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113025251 = 239472909
BaseRepresentation
bin1101011110010…
…10000011100011
321212200021111102
412233022003203
5212413302001
615114305015
72541461453
oct657120343
9255607442
10113025251
11588885a9
1231a2816b
131a554361
1411021d63
159dc8e6b
hex6bca0e3

113025251 has 4 divisors (see below), whose sum is σ = 113498400. Its totient is φ = 112552104.

The previous prime is 113025229. The next prime is 113025257. The reversal of 113025251 is 152520311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113025251 - 210 = 113024227 is a prime.

It is a super-2 number, since 2×1130252512 = 25549414727226002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113025257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236216 + ... + 236693.

It is an arithmetic number, because the mean of its divisors is an integer number (28374600).

Almost surely, 2113025251 is an apocalyptic number.

113025251 is a deficient number, since it is larger than the sum of its proper divisors (473149).

113025251 is an equidigital number, since it uses as much as digits as its factorization.

113025251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473148.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 113025251 is about 10631.3334535231. Note that the first 3 decimals coincide. The cubic root of 113025251 is about 483.4948212931.

Adding to 113025251 its reverse (152520311), we get a palindrome (265545562).

The spelling of 113025251 in words is "one hundred thirteen million, twenty-five thousand, two hundred fifty-one".

Divisors: 1 239 472909 113025251