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13132919 = 73179903
BaseRepresentation
bin110010000110…
…010001110111
3220201012222102
4302012101313
511330223134
61145252315
7216425252
oct62062167
926635872
1013132919
11745aa58
12449409b
13294a877
141a5c099
15124637e
hexc86477

13132919 has 4 divisors (see below), whose sum is σ = 13312896. Its totient is φ = 12952944.

The previous prime is 13132913. The next prime is 13132939. The reversal of 13132919 is 91923131.

13132919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91923131 = 175407243.

It is a cyclic number.

It is not a de Polignac number, because 13132919 - 220 = 12084343 is a prime.

It is a super-2 number, since 2×131329192 = 344947122921122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13132891 and 13132900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13132913) 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, 89879 + ... + 90024.

It is an arithmetic number, because the mean of its divisors is an integer number (3328224).

Almost surely, 213132919 is an apocalyptic number.

13132919 is a deficient number, since it is larger than the sum of its proper divisors (179977).

13132919 is an equidigital number, since it uses as much as digits as its factorization.

13132919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179976.

The product of its digits is 1458, while the sum is 29.

The square root of 13132919 is about 3623.9369475751. The cubic root of 13132919 is about 235.9321300095.

The spelling of 13132919 in words is "thirteen million, one hundred thirty-two thousand, nine hundred nineteen".

Divisors: 1 73 179903 13132919