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25133768 = 2311285611
BaseRepresentation
bin101111111100…
…0001011001000
31202021221001022
41133320023020
522413240033
62254412012
7423430202
oct137701310
952257038
1025133768
1113207410
128501008
13529006a
1434a3772
152317098
hex17f82c8

25133768 has 16 divisors (see below), whose sum is σ = 51410160. Its totient is φ = 11424400.

The previous prime is 25133761. The next prime is 25133809. The reversal of 25133768 is 86733152.

It is not an unprimeable number, because it can be changed into a prime (25133761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142718 + ... + 142893.

It is an arithmetic number, because the mean of its divisors is an integer number (3213135).

Almost surely, 225133768 is an apocalyptic number.

It is an amenable number.

25133768 is an abundant number, since it is smaller than the sum of its proper divisors (26276392).

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

25133768 is a wasteful number, since it uses less digits than its factorization.

25133768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285628 (or 285624 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 25133768 is about 5013.3589538352. The cubic root of 25133768 is about 292.9223664137.

The spelling of 25133768 in words is "twenty-five million, one hundred thirty-three thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 11 22 44 88 285611 571222 1142444 2284888 3141721 6283442 12566884 25133768