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25760064 = 2631112197
BaseRepresentation
bin110001001000…
…1000101000000
31210110202011110
41202101011000
523043310224
62320043320
7431646141
oct142210500
953422143
1025760064
11135a4a10
128763540
13544c155
1435c7ac8
1523dc929
hex1891140

25760064 has 56 divisors (see below), whose sum is σ = 74359008. Its totient is φ = 7805440.

The previous prime is 25760057. The next prime is 25760087. The reversal of 25760064 is 46006752.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3987 + ... + 8210.

Almost surely, 225760064 is an apocalyptic number.

25760064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25760064 is an abundant number, since it is smaller than the sum of its proper divisors (48598944).

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

25760064 is a wasteful number, since it uses less digits than its factorization.

25760064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12223 (or 12213 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 25760064 is about 5075.4373210591. The cubic root of 25760064 is about 295.3354949704.

The spelling of 25760064 in words is "twenty-five million, seven hundred sixty thousand, sixty-four".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 132 176 192 264 352 528 704 1056 2112 12197 24394 36591 48788 73182 97576 134167 146364 195152 268334 292728 390304 402501 536668 585456 780608 805002 1073336 1170912 1610004 2146672 2341824 3220008 4293344 6440016 8586688 12880032 25760064