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625202493 = 3208400831
BaseRepresentation
bin100101010000111…
…101010100111101
31121120102120120220
4211100331110331
52240022434433
6142012131553
721331063536
oct4520752475
91546376526
10625202493
112a0a01983
12155466bb9
139c6b1006
145d06768d
1539d4a2b3
hex2543d53d

625202493 has 4 divisors (see below), whose sum is σ = 833603328. Its totient is φ = 416801660.

The previous prime is 625202453. The next prime is 625202509. The reversal of 625202493 is 394202526.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 625202493 - 214 = 625186109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625202453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104200413 + ... + 104200418.

It is an arithmetic number, because the mean of its divisors is an integer number (208400832).

Almost surely, 2625202493 is an apocalyptic number.

It is an amenable number.

625202493 is a deficient number, since it is larger than the sum of its proper divisors (208400835).

625202493 is a wasteful number, since it uses less digits than its factorization.

625202493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208400834.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 625202493 is about 25004.0495320258. The cubic root of 625202493 is about 855.0802988774.

Adding to 625202493 its sum of digits (33), we get a palindrome (625202526).

The spelling of 625202493 in words is "six hundred twenty-five million, two hundred two thousand, four hundred ninety-three".

Divisors: 1 3 208400831 625202493