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64460125 = 53515681
BaseRepresentation
bin1111010111100…
…1010101011101
311111021220200001
43311321111131
5113000211000
610221334301
71411621252
oct365712535
9144256601
1064460125
1133427934
1219707391
131047c0b2
1487bd429
1559d446a
hex3d7955d

64460125 has 8 divisors (see below), whose sum is σ = 80446392. Its totient is φ = 51568000.

The previous prime is 64460087. The next prime is 64460131. The reversal of 64460125 is 52106446.

It can be written as a sum of positive squares in 4 ways, for example, as 683929 + 63776196 = 827^2 + 7986^2 .

It is not a de Polignac number, because 64460125 - 221 = 62362973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64460093 and 64460102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257716 + ... + 257965.

It is an arithmetic number, because the mean of its divisors is an integer number (10055799).

Almost surely, 264460125 is an apocalyptic number.

It is an amenable number.

64460125 is a deficient number, since it is larger than the sum of its proper divisors (15986267).

64460125 is an equidigital number, since it uses as much as digits as its factorization.

64460125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515696 (or 515686 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 64460125 is about 8028.7063092381. The cubic root of 64460125 is about 400.9563056269.

The spelling of 64460125 in words is "sixty-four million, four hundred sixty thousand, one hundred twenty-five".

Divisors: 1 5 25 125 515681 2578405 12892025 64460125