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64420614 = 23210093547
BaseRepresentation
bin1111010110111…
…1101100000110
311111012220110200
43311233230012
5112442424424
610220431330
71411365126
oct365575406
9144186420
1064420614
1133400185
12196a8546
131046710b
1487acc86
1559c78c9
hex3d6fb06

64420614 has 24 divisors (see below), whose sum is σ = 139755720. Its totient is φ = 21446208.

The previous prime is 64420607. The next prime is 64420619. The reversal of 64420614 is 41602446.

64420614 is a `hidden beast` number, since 6 + 4 + 42 + 0 + 614 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64420619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16389 + ... + 19935.

It is an arithmetic number, because the mean of its divisors is an integer number (5823155).

Almost surely, 264420614 is an apocalyptic number.

64420614 is an abundant number, since it is smaller than the sum of its proper divisors (75335106).

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

64420614 is a wasteful number, since it uses less digits than its factorization.

64420614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4564 (or 4561 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 64420614 is about 8026.2453239357. The cubic root of 64420614 is about 400.8743664822.

The spelling of 64420614 in words is "sixty-four million, four hundred twenty thousand, six hundred fourteen".

Divisors: 1 2 3 6 9 18 1009 2018 3027 3547 6054 7094 9081 10641 18162 21282 31923 63846 3578923 7157846 10736769 21473538 32210307 64420614