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30350357725 = 527316630333
BaseRepresentation
bin11100010001000001…
…011011010011011101
32220100011112220211011
4130101001123103131
5444124142421400
621535345255221
72123052532642
oct342101332335
986304486734
1030350357725
1111964a92a76
125a70334511
132b28b4506c
14167cba9dc9
15bc97838ba
hex71105b4dd

30350357725 has 12 divisors (see below), whose sum is σ = 38149986196. Its totient is φ = 23947678080.

The previous prime is 30350357659. The next prime is 30350357753. The reversal of 30350357725 is 52775305303.

It can be written as a sum of positive squares in 6 ways, for example, as 2338979769 + 28011377956 = 48363^2 + 167366^2 .

It is not a de Polignac number, because 30350357725 - 215 = 30350324957 is a prime.

It is a super-2 number, since 2×303503577252 (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 8313342 + ... + 8316991.

Almost surely, 230350357725 is an apocalyptic number.

It is an amenable number.

30350357725 is a deficient number, since it is larger than the sum of its proper divisors (7799628471).

30350357725 is a wasteful number, since it uses less digits than its factorization.

30350357725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16630416 (or 16630411 counting only the distinct ones).

The product of its (nonzero) digits is 330750, while the sum is 40.

The spelling of 30350357725 in words is "thirty billion, three hundred fifty million, three hundred fifty-seven thousand, seven hundred twenty-five".

Divisors: 1 5 25 73 365 1825 16630333 83151665 415758325 1214014309 6070071545 30350357725