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15230867413 = 40137982213
BaseRepresentation
bin11100010111101010…
…01001011111010101
31110022110120020020111
432023311021133111
5222143100224123
610555202203021
71046302144156
oct161365113725
943273506214
1015230867413
116506478133
122b50953471
1315896200a8
14a46b5d92d
155e221990d
hex38bd497d5

15230867413 has 4 divisors (see below), whose sum is σ = 15268850028. Its totient is φ = 15192884800.

The previous prime is 15230867401. The next prime is 15230867429. The reversal of 15230867413 is 31476803251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13070662929 + 2160204484 = 114327^2 + 46478^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-15230867413 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15230867453) 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, 18990706 + ... + 18991507.

It is an arithmetic number, because the mean of its divisors is an integer number (3817212507).

Almost surely, 215230867413 is an apocalyptic number.

It is an amenable number.

15230867413 is a deficient number, since it is larger than the sum of its proper divisors (37982615).

15230867413 is an equidigital number, since it uses as much as digits as its factorization.

15230867413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37982614.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 15230867413 in words is "fifteen billion, two hundred thirty million, eight hundred sixty-seven thousand, four hundred thirteen".

Divisors: 1 401 37982213 15230867413