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44688680 = 2358912553
BaseRepresentation
bin1010101001111…
…0010100101000
310010002102100022
42222132110220
542420014210
64233500012
71051563461
oct252362450
9103072308
1044688680
11232532a3
1212b71608
139348a0a
145d13d68
153dcb155
hex2a9e528

44688680 has 32 divisors (see below), whose sum is σ = 101687400. Its totient is φ = 17673216.

The previous prime is 44688671. The next prime is 44688731. The reversal of 44688680 is 8688644.

It can be written as a sum of positive squares in 4 ways, for example, as 41654116 + 3034564 = 6454^2 + 1742^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

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, 2717 + ... + 9836.

Almost surely, 244688680 is an apocalyptic number.

44688680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44688680 is an abundant number, since it is smaller than the sum of its proper divisors (56998720).

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

44688680 is a wasteful number, since it uses less digits than its factorization.

44688680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12653 (or 12649 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 44.

The square root of 44688680 is about 6684.9592369737. The cubic root of 44688680 is about 354.8671856539.

The spelling of 44688680 in words is "forty-four million, six hundred eighty-eight thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 89 178 356 445 712 890 1780 3560 12553 25106 50212 62765 100424 125530 251060 502120 1117217 2234434 4468868 5586085 8937736 11172170 22344340 44688680