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15189270413 = 61249004433
BaseRepresentation
bin11100010010101100…
…11101111110001101
31110012120021212212212
432021112131332031
5222101423123123
610551114440205
71045255445132
oct161126357615
943176255785
1015189270413
116494a46749
122b3aa33065
131580b17695
14a41412589
155dd74e878
hex38959df8d

15189270413 has 4 divisors (see below), whose sum is σ = 15438274908. Its totient is φ = 14940265920.

The previous prime is 15189270409. The next prime is 15189270427. The reversal of 15189270413 is 31407298151.

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 7367990569 + 7821279844 = 85837^2 + 88438^2 .

It is a cyclic number.

It is not a de Polignac number, because 15189270413 - 22 = 15189270409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15189270433) 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, 124502156 + ... + 124502277.

It is an arithmetic number, because the mean of its divisors is an integer number (3859568727).

Almost surely, 215189270413 is an apocalyptic number.

It is an amenable number.

15189270413 is a deficient number, since it is larger than the sum of its proper divisors (249004495).

15189270413 is an equidigital number, since it uses as much as digits as its factorization.

15189270413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249004494.

The product of its (nonzero) digits is 60480, while the sum is 41.

The spelling of 15189270413 in words is "fifteen billion, one hundred eighty-nine million, two hundred seventy thousand, four hundred thirteen".

Divisors: 1 61 249004433 15189270413