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25112387 = 314318839
BaseRepresentation
bin101111111001…
…0111101000011
31202020211201102
41133302331003
522412044022
62254125015
7423310646
oct137627503
952224642
1025112387
11131a2343
1284b076b
135283401
143499a5d
152310a92
hex17f2f43

25112387 has 8 divisors (see below), whose sum is σ = 26526720. Its totient is φ = 23735880.

The previous prime is 25112363. The next prime is 25112393. The reversal of 25112387 is 78321152.

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

It is a cyclic number.

It is not a de Polignac number, because 25112387 - 214 = 25096003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25112287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8087 + ... + 10752.

It is an arithmetic number, because the mean of its divisors is an integer number (3315840).

Almost surely, 225112387 is an apocalyptic number.

25112387 is a deficient number, since it is larger than the sum of its proper divisors (1414333).

25112387 is a wasteful number, since it uses less digits than its factorization.

25112387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18913.

The product of its digits is 3360, while the sum is 29.

The square root of 25112387 is about 5011.2260974736. The cubic root of 25112387 is about 292.8392809819.

The spelling of 25112387 in words is "twenty-five million, one hundred twelve thousand, three hundred eighty-seven".

Divisors: 1 31 43 1333 18839 584009 810077 25112387