Search a number
-
+
13291383 = 37632923
BaseRepresentation
bin110010101100…
…111101110111
3221000021100110
4302230331313
511400311013
61152514103
7220655250
oct62547567
927007313
1013291383
117559016
12454b933
1329a4a31
141a9db27
1512782c3
hexcacf77

13291383 has 8 divisors (see below), whose sum is σ = 20253568. Its totient is φ = 7595064.

The previous prime is 13291381. The next prime is 13291403. The reversal of 13291383 is 38319231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13291383 - 21 = 13291381 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 13291383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13291381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316441 + ... + 316482.

It is an arithmetic number, because the mean of its divisors is an integer number (2531696).

Almost surely, 213291383 is an apocalyptic number.

13291383 is a deficient number, since it is larger than the sum of its proper divisors (6962185).

13291383 is an equidigital number, since it uses as much as digits as its factorization.

13291383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632933.

The product of its digits is 3888, while the sum is 30.

The square root of 13291383 is about 3645.7349053380. The cubic root of 13291383 is about 236.8772709292.

The spelling of 13291383 in words is "thirteen million, two hundred ninety-one thousand, three hundred eighty-three".

Divisors: 1 3 7 21 632923 1898769 4430461 13291383