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25132628 = 226283157
BaseRepresentation
bin101111111011…
…1111001010100
31202021212111002
41133313321110
522413221003
62254402432
7423423653
oct137677124
952255432
1025132628
1113206574
128500418
13528c6a1
1434a319a
152316a88
hex17f7e54

25132628 has 6 divisors (see below), whose sum is σ = 43982106. Its totient is φ = 12566312.

The previous prime is 25132607. The next prime is 25132633. The reversal of 25132628 is 82623152.

It can be written as a sum of positive squares in only one way, i.e., 23697424 + 1435204 = 4868^2 + 1198^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25132628.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3141575 + ... + 3141582.

It is an arithmetic number, because the mean of its divisors is an integer number (7330351).

Almost surely, 225132628 is an apocalyptic number.

It is an amenable number.

25132628 is a deficient number, since it is larger than the sum of its proper divisors (18849478).

25132628 is a wasteful number, since it uses less digits than its factorization.

25132628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6283161 (or 6283159 counting only the distinct ones).

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

The square root of 25132628 is about 5013.2452563185. The cubic root of 25132628 is about 292.9179376237.

The spelling of 25132628 in words is "twenty-five million, one hundred thirty-two thousand, six hundred twenty-eight".

Divisors: 1 2 4 6283157 12566314 25132628