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64868600 = 23521719079
BaseRepresentation
bin1111011101110…
…1000011111000
311112001122222202
43313131003320
5113101243400
610234205332
71415242166
oct367350370
9145048882
1064868600
1133686815
1219883848
1310592cb4
148888236
155a654d5
hex3ddd0f8

64868600 has 48 divisors (see below), whose sum is σ = 159699600. Its totient is φ = 24419840.

The previous prime is 64868597. The next prime is 64868611. The reversal of 64868600 is 686846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6140 + ... + 12939.

It is an arithmetic number, because the mean of its divisors is an integer number (3327075).

Almost surely, 264868600 is an apocalyptic number.

It is an amenable number.

64868600 is an abundant number, since it is smaller than the sum of its proper divisors (94831000).

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

64868600 is a wasteful number, since it uses less digits than its factorization.

64868600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19112 (or 19103 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 64868600 is about 8054.1045436473. The cubic root of 64868600 is about 401.8014580262.

The spelling of 64868600 in words is "sixty-four million, eight hundred sixty-eight thousand, six hundred".

Divisors: 1 2 4 5 8 10 17 20 25 34 40 50 68 85 100 136 170 200 340 425 680 850 1700 3400 19079 38158 76316 95395 152632 190790 324343 381580 476975 648686 763160 953950 1297372 1621715 1907900 2594744 3243430 3815800 6486860 8108575 12973720 16217150 32434300 64868600