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45685660 = 2257132173
BaseRepresentation
bin1010111001000…
…1101110011100
310011222001221111
42232101232130
543143420120
64311111404
71063215226
oct256215634
9104861844
1045685660
1123874349
1213372564
139607747
1460d3416
15402675a
hex2b91b9c

45685660 has 24 divisors (see below), whose sum is σ = 97294176. Its totient is φ = 18016320.

The previous prime is 45685597. The next prime is 45685669. The reversal of 45685660 is 6658654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45685669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14667 + ... + 17506.

It is an arithmetic number, because the mean of its divisors is an integer number (4053924).

Almost surely, 245685660 is an apocalyptic number.

It is an amenable number.

45685660 is an abundant number, since it is smaller than the sum of its proper divisors (51608516).

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

45685660 is a wasteful number, since it uses less digits than its factorization.

45685660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32253 (or 32251 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 45685660 is about 6759.1168062107. The cubic root of 45685660 is about 357.4867649590.

The spelling of 45685660 in words is "forty-five million, six hundred eighty-five thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 71 142 284 355 710 1420 32173 64346 128692 160865 321730 643460 2284283 4568566 9137132 11421415 22842830 45685660