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64014725 = 525348313
BaseRepresentation
bin1111010000110…
…0100110000101
311110110021200202
43310030212011
5112341432400
610204020245
71405054565
oct364144605
9143407622
1064014725
1133153235
1219531685
1310354448
148704da5
1559474d5
hex3d0c985

64014725 has 12 divisors (see below), whose sum is σ = 80877636. Its totient is φ = 50244480.

The previous prime is 64014703. The next prime is 64014739. The reversal of 64014725 is 52741046.

It can be written as a sum of positive squares in 6 ways, for example, as 1304164 + 62710561 = 1142^2 + 7919^2 .

It is not a de Polignac number, because 64014725 - 220 = 62966149 is a prime.

It is a super-4 number, since 4×640147254 (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

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, 22832 + ... + 25481.

It is an arithmetic number, because the mean of its divisors is an integer number (6739803).

Almost surely, 264014725 is an apocalyptic number.

It is an amenable number.

64014725 is a deficient number, since it is larger than the sum of its proper divisors (16862911).

64014725 is a wasteful number, since it uses less digits than its factorization.

64014725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48376 (or 48371 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 64014725 is about 8000.9202595701. The cubic root of 64014725 is about 400.0306747309.

The spelling of 64014725 in words is "sixty-four million, fourteen thousand, seven hundred twenty-five".

Divisors: 1 5 25 53 265 1325 48313 241565 1207825 2560589 12802945 64014725