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30257413000 = 235330257413
BaseRepresentation
bin11100001011011110…
…110111101110001000
32220002200122211121221
4130023132313232020
5443431344204000
621522225211424
72120543524033
oct341336675610
986080584557
1030257413000
1111917580251
125a45190b74
132b12801999
1416706d401a
15bc152461a
hex70b7b7b88

30257413000 has 32 divisors (see below), whose sum is σ = 70802348760. Its totient is φ = 12102964800.

The previous prime is 30257412967. The next prime is 30257413007. The reversal of 30257413000 is 31475203.

It can be written as a sum of positive squares in 4 ways, for example, as 15447009796 + 14810403204 = 124286^2 + 121698^2 .

It is a super-2 number, since 2×302574130002 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (30257413007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15127707 + ... + 15129706.

Almost surely, 230257413000 is an apocalyptic number.

It is an amenable number.

30257413000 is an abundant number, since it is smaller than the sum of its proper divisors (40544935760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30257413000 is a wasteful number, since it uses less digits than its factorization.

30257413000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30257434 (or 30257420 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

Adding to 30257413000 its reverse (31475203), we get a palindrome (30288888203).

The spelling of 30257413000 in words is "thirty billion, two hundred fifty-seven million, four hundred thirteen thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 30257413 60514826 121029652 151287065 242059304 302574130 605148260 756435325 1210296520 1512870650 3025741300 3782176625 6051482600 7564353250 15128706500 30257413000