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25068939 = 372170537
BaseRepresentation
bin101111110100…
…0010110001011
31202011122010020
41133220112023
522404201224
62253151523
7423040200
oct137502613
952148106
1025068939
1113172735
12848b5a3
1352696bc
143487ca7
152302c79
hex17e858b

25068939 has 12 divisors (see below), whose sum is σ = 38882664. Its totient is φ = 14325024.

The previous prime is 25068929. The next prime is 25068973. The reversal of 25068939 is 93986052.

It is not a de Polignac number, because 25068939 - 27 = 25068811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25068939.

It is not an unprimeable number, because it can be changed into a prime (25068929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85122 + ... + 85415.

It is an arithmetic number, because the mean of its divisors is an integer number (3240222).

Almost surely, 225068939 is an apocalyptic number.

25068939 is a deficient number, since it is larger than the sum of its proper divisors (13813725).

25068939 is a wasteful number, since it uses less digits than its factorization.

25068939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170554 (or 170547 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 25068939 is about 5006.8891539558. The cubic root of 25068939 is about 292.6702989594.

The spelling of 25068939 in words is "twenty-five million, sixty-eight thousand, nine hundred thirty-nine".

Divisors: 1 3 7 21 49 147 170537 511611 1193759 3581277 8356313 25068939