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13268530983 = 34422843661
BaseRepresentation
bin11000101101101110…
…11011011100100111
31021020201002012201110
430112313123130213
5204133220442413
610032342400103
7646543436541
oct142667333447
937221065643
1013268530983
115699815794
1226a3730033
131335c01c86
148dc2aa691
15529ce68c3
hex316ddb727

13268530983 has 4 divisors (see below), whose sum is σ = 17691374648. Its totient is φ = 8845687320.

The previous prime is 13268530939. The next prime is 13268531009. The reversal of 13268530983 is 38903586231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38903586231 = 312967862077.

It is a de Polignac number, because none of the positive numbers 2k-13268530983 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 (13268530903) 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, 2211421828 + ... + 2211421833.

It is an arithmetic number, because the mean of its divisors is an integer number (4422843662).

Almost surely, 213268530983 is an apocalyptic number.

13268530983 is a deficient number, since it is larger than the sum of its proper divisors (4422843665).

13268530983 is an equidigital number, since it uses as much as digits as its factorization.

13268530983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4422843664.

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 13268530983 in words is "thirteen billion, two hundred sixty-eight million, five hundred thirty thousand, nine hundred eighty-three".

Divisors: 1 3 4422843661 13268530983