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25940912 = 2417283337
BaseRepresentation
bin110001011110…
…1001110110000
31210210221020112
41202331032300
523120102122
62324000452
7433331324
oct142751660
953727215
1025940912
1113708878
128830128
1354b356a
143633984
1524262e2
hex18bd3b0

25940912 has 40 divisors (see below), whose sum is σ = 53563536. Its totient is φ = 12128256.

The previous prime is 25940899. The next prime is 25940923. The reversal of 25940912 is 21904952.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 76808 + ... + 77144.

Almost surely, 225940912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25940912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26781768).

25940912 is an abundant number, since it is smaller than the sum of its proper divisors (27622624).

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

25940912 is a wasteful number, since it uses less digits than its factorization.

25940912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645 (or 639 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 25940912 is about 5093.2221628356. Note that the first 3 decimals coincide. The cubic root of 25940912 is about 296.0250161472.

The spelling of 25940912 in words is "twenty-five million, nine hundred forty thousand, nine hundred twelve".

Divisors: 1 2 4 8 16 17 34 68 136 272 283 337 566 674 1132 1348 2264 2696 4528 4811 5392 5729 9622 11458 19244 22916 38488 45832 76976 91664 95371 190742 381484 762968 1525936 1621307 3242614 6485228 12970456 25940912