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25142492 = 2261103043
BaseRepresentation
bin101111111101…
…0010011011100
31202022101000102
41133322103130
522414024432
62254520232
7423464504
oct137722334
952271012
1025142492
1113212a21
128506078
13529401b
1434a6a04
152319962
hex17fa4dc

25142492 has 12 divisors (see below), whose sum is σ = 44721096. Its totient is φ = 12365040.

The previous prime is 25142489. The next prime is 25142501. The reversal of 25142492 is 29424152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51278 + ... + 51765.

It is an arithmetic number, because the mean of its divisors is an integer number (3726758).

Almost surely, 225142492 is an apocalyptic number.

It is an amenable number.

25142492 is a deficient number, since it is larger than the sum of its proper divisors (19578604).

25142492 is a wasteful number, since it uses less digits than its factorization.

25142492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103108 (or 103106 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 25142492 is about 5014.2289536877. The cubic root of 25142492 is about 292.9562538796.

The spelling of 25142492 in words is "twenty-five million, one hundred forty-two thousand, four hundred ninety-two".

Divisors: 1 2 4 61 122 244 103043 206086 412172 6285623 12571246 25142492