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625057066 = 21307239119
BaseRepresentation
bin100101010000011…
…001110100101010
31121120011012002201
4211100121310222
52240003311231
6142005050414
721326616544
oct4520316452
91546135081
10625057066
112a0912697
121553b6a0a
139c65ca6a
145d02a694
1539d1c161
hex25419d2a

625057066 has 8 divisors (see below), whose sum is σ = 938306880. Its totient is φ = 312288108.

The previous prime is 625057049. The next prime is 625057067. The reversal of 625057066 is 660750526.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (625057067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116946 + ... + 122173.

It is an arithmetic number, because the mean of its divisors is an integer number (117288360).

Almost surely, 2625057066 is an apocalyptic number.

625057066 is a deficient number, since it is larger than the sum of its proper divisors (313249814).

625057066 is a wasteful number, since it uses less digits than its factorization.

625057066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240428.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 625057066 is about 25001.1412939490. The cubic root of 625057066 is about 855.0139942764.

The spelling of 625057066 in words is "six hundred twenty-five million, fifty-seven thousand, sixty-six".

Divisors: 1 2 1307 2614 239119 478238 312528533 625057066