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625801393 = 7212771457
BaseRepresentation
bin100101010011001…
…111100010110001
31121121120000010101
4211103033202301
52240201121033
6142033032401
721336136600
oct4523174261
91547500111
10625801393
112a1280938
121556b5701
139c8607a9
145d181a37
1539e1797d
hex254cf8b1

625801393 has 6 divisors (see below), whose sum is σ = 727973106. Its totient is φ = 536401152.

The previous prime is 625801361. The next prime is 625801439. The reversal of 625801393 is 393108526.

625801393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 620657569 + 5143824 = 24913^2 + 2268^2 .

It is not a de Polignac number, because 625801393 - 25 = 625801361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (625807393) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6385680 + ... + 6385777.

It is an arithmetic number, because the mean of its divisors is an integer number (121328851).

Almost surely, 2625801393 is an apocalyptic number.

It is an amenable number.

625801393 is a deficient number, since it is larger than the sum of its proper divisors (102171713).

625801393 is a wasteful number, since it uses less digits than its factorization.

625801393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12771471 (or 12771464 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 625801393 is about 25016.0227254454. The cubic root of 625801393 is about 855.3532473289.

The spelling of 625801393 in words is "six hundred twenty-five million, eight hundred one thousand, three hundred ninety-three".

Divisors: 1 7 49 12771457 89400199 625801393