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30233100013 = 13121761733
BaseRepresentation
bin11100001010000010…
…000111111011101101
32220000222220121110221
4130022002013323231
5443404133200023
621520000131341
72120130052504
oct341202077355
986028817427
1030233100013
1111904884576
125a39006b51
132b0a76b3bc
14166b3a583b
15bbe32085d
hex70a087eed

30233100013 has 6 divisors (see below), whose sum is σ = 30465666062. Its totient is φ = 30002295960.

The previous prime is 30233099993. The next prime is 30233100019. The reversal of 30233100013 is 31000133203.

It can be written as a sum of positive squares in only one way, i.e., 28868388649 + 1364711364 = 169907^2 + 36942^2 .

It is a de Polignac number, because none of the positive numbers 2k-30233100013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30233100013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30233100019) 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, 863706 + ... + 898027.

Almost surely, 230233100013 is an apocalyptic number.

It is an amenable number.

30233100013 is a deficient number, since it is larger than the sum of its proper divisors (232566049).

30233100013 is an equidigital number, since it uses as much as digits as its factorization.

30233100013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761995 (or 1761864 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 30233100013 its reverse (31000133203), we get a palindrome (61233233216).

The spelling of 30233100013 in words is "thirty billion, two hundred thirty-three million, one hundred thousand, thirteen".

Divisors: 1 131 17161 1761733 230787023 30233100013