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10251131 = 11931921
BaseRepresentation
bin100111000110…
…101101111011
3201021210220112
4213012231323
510111014011
61003414535
7153063452
oct47065573
921253815
1010251131
115871910
12352444b
13217bc77
14150bb99
15d7758b
hex9c6b7b

10251131 has 4 divisors (see below), whose sum is σ = 11183064. Its totient is φ = 9319200.

The previous prime is 10251121. The next prime is 10251139. The reversal of 10251131 is 13115201.

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

It is a de Polignac number, because none of the positive numbers 2k-10251131 is a prime.

It is a super-2 number, since 2×102511312 = 210171373558322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10251139) 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, 465950 + ... + 465971.

It is an arithmetic number, because the mean of its divisors is an integer number (2795766).

Almost surely, 210251131 is an apocalyptic number.

10251131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10251131 is a deficient number, since it is larger than the sum of its proper divisors (931933).

10251131 is an equidigital number, since it uses as much as digits as its factorization.

10251131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931932.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 10251131 is about 3201.7387463689. The cubic root of 10251131 is about 217.2320636020.

Adding to 10251131 its reverse (13115201), we get a palindrome (23366332).

The spelling of 10251131 in words is "ten million, two hundred fifty-one thousand, one hundred thirty-one".

Divisors: 1 11 931921 10251131