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64485375 = 353359479
BaseRepresentation
bin1111010111111…
…1011111111111
311111100012022020
43311333133333
5113002013000
610222051223
71412055003
oct365773777
9144305266
1064485375
11334448a9
1219719b13
131048a736
1487c8703
1559dbba0
hex3d7f7ff

64485375 has 32 divisors (see below), whose sum is σ = 107827200. Its totient is φ = 34224800.

The previous prime is 64485367. The next prime is 64485383. The reversal of 64485375 is 57358446.

It is an interprime number because it is at equal distance from previous prime (64485367) and next prime (64485383).

It is not a de Polignac number, because 64485375 - 23 = 64485367 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134386 + ... + 134864.

It is an arithmetic number, because the mean of its divisors is an integer number (3369600).

Almost surely, 264485375 is an apocalyptic number.

64485375 is a deficient number, since it is larger than the sum of its proper divisors (43341825).

64485375 is a wasteful number, since it uses less digits than its factorization.

64485375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856 (or 846 counting only the distinct ones).

The product of its digits is 403200, while the sum is 42.

The square root of 64485375 is about 8030.2786377560. The cubic root of 64485375 is about 401.0086523300.

The spelling of 64485375 in words is "sixty-four million, four hundred eighty-five thousand, three hundred seventy-five".

Divisors: 1 3 5 15 25 75 125 359 375 479 1077 1437 1795 2395 5385 7185 8975 11975 26925 35925 44875 59875 134625 171961 179625 515883 859805 2579415 4299025 12897075 21495125 64485375