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15130444001 = 17077886013
BaseRepresentation
bin11100001011101100…
…00100000011100001
31110001110121012012212
432011312010003201
5221441343202001
610541213531505
71043642436431
oct160566040341
943043535185
1015130444001
116464817582
122b231a3b95
13157188b95a
14a3769c2c1
155d84ce7bb
hex385d840e1

15130444001 has 4 divisors (see below), whose sum is σ = 15131347092. Its totient is φ = 15129540912.

The previous prime is 15130443997. The next prime is 15130444067. The reversal of 15130444001 is 10044403151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10044403151 = 97710280863.

It can be written as a sum of positive squares in 2 ways, for example, as 6402400225 + 8728043776 = 80015^2 + 93424^2 .

It is a cyclic number.

It is not a de Polignac number, because 15130444001 - 22 = 15130443997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15130444501) 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, 425930 + ... + 460083.

It is an arithmetic number, because the mean of its divisors is an integer number (3782836773).

Almost surely, 215130444001 is an apocalyptic number.

It is an amenable number.

15130444001 is a deficient number, since it is larger than the sum of its proper divisors (903091).

15130444001 is an equidigital number, since it uses as much as digits as its factorization.

15130444001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903090.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 15130444001 its reverse (10044403151), we get a palindrome (25174847152).

The spelling of 15130444001 in words is "fifteen billion, one hundred thirty million, four hundred forty-four thousand, one".

Divisors: 1 17077 886013 15130444001