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25716272 = 2419292917
BaseRepresentation
bin110001000011…
…0011000110000
31210101112002112
41202012120300
523040410042
62315104452
7431404361
oct142063060
953345075
1025716272
111357501a
128742128
13543523a
1435b5b68
1523ce982
hex1886630

25716272 has 40 divisors (see below), whose sum is σ = 54274800. Its totient is φ = 11757312.

The previous prime is 25716259. The next prime is 25716293. The reversal of 25716272 is 27261752.

It is a super-2 number, since 2×257162722 = 1322653291155968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7358 + ... + 10274.

It is an arithmetic number, because the mean of its divisors is an integer number (1356870).

Almost surely, 225716272 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 25716272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27137400).

25716272 is an abundant number, since it is smaller than the sum of its proper divisors (28558528).

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

25716272 is a wasteful number, since it uses less digits than its factorization.

25716272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973 (or 2967 counting only the distinct ones).

The product of its digits is 11760, while the sum is 32.

The square root of 25716272 is about 5071.1213750018. The cubic root of 25716272 is about 295.1680436810.

The spelling of 25716272 in words is "twenty-five million, seven hundred sixteen thousand, two hundred seventy-two".

Divisors: 1 2 4 8 16 19 29 38 58 76 116 152 232 304 464 551 1102 2204 2917 4408 5834 8816 11668 23336 46672 55423 84593 110846 169186 221692 338372 443384 676744 886768 1353488 1607267 3214534 6429068 12858136 25716272