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13280830133 = 90431468631
BaseRepresentation
bin11000101111001100…
…10110001010110101
31021021120020001222112
430113212112022311
5204144343031013
610033502140405
7650053123244
oct142746261265
937246201875
1013280830133
1156a575627a
1226a7881705
13133861a18c
148ddb8c95b
1552ae25ba8
hex3179962b5

13280830133 has 4 divisors (see below), whose sum is σ = 13282307808. Its totient is φ = 13279352460.

The previous prime is 13280830127. The next prime is 13280830163. The reversal of 13280830133 is 33103808231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33103808231 = 132546446787.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13280830133 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 13280830133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13280830163) 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, 725273 + ... + 743358.

It is an arithmetic number, because the mean of its divisors is an integer number (3320576952).

Almost surely, 213280830133 is an apocalyptic number.

It is an amenable number.

13280830133 is a deficient number, since it is larger than the sum of its proper divisors (1477675).

13280830133 is an equidigital number, since it uses as much as digits as its factorization.

13280830133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477674.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 13280830133 in words is "thirteen billion, two hundred eighty million, eight hundred thirty thousand, one hundred thirty-three".

Divisors: 1 9043 1468631 13280830133