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11925138 = 231987523
BaseRepresentation
bin101101011111…
…011010010010
3211102212012210
4231133122102
511023101023
61103332550
7203235111
oct55373222
924385183
1011925138
116805595
123bb1156
132616bc4
141825c78
1510a8593
hexb5f692

11925138 has 8 divisors (see below), whose sum is σ = 23850288. Its totient is φ = 3975044.

The previous prime is 11925131. The next prime is 11925149. The reversal of 11925138 is 83152911.

It is a sphenic number, since it is the product of 3 distinct primes.

11925138 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (11925131) 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, 993756 + ... + 993767.

It is an arithmetic number, because the mean of its divisors is an integer number (2981286).

Almost surely, 211925138 is an apocalyptic number.

11925138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11925138 is a wasteful number, since it uses less digits than its factorization.

11925138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987528.

The product of its digits is 2160, while the sum is 30.

The square root of 11925138 is about 3453.2793110318. The cubic root of 11925138 is about 228.4657683894.

The spelling of 11925138 in words is "eleven million, nine hundred twenty-five thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 1987523 3975046 5962569 11925138