Search a number
-
+
13380357 = 34460119
BaseRepresentation
bin110011000010…
…101100000101
3221011210101210
4303002230011
511411132412
61154442033
7221505534
oct63025405
927153353
1013380357
117609951
124593319
132a06393
141ac431b
15129483c
hexcc2b05

13380357 has 4 divisors (see below), whose sum is σ = 17840480. Its totient is φ = 8920236.

The previous prime is 13380337. The next prime is 13380361. The reversal of 13380357 is 75308331.

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.

It is not a de Polignac number, because 13380357 - 27 = 13380229 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 (13380307) 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, 2230057 + ... + 2230062.

It is an arithmetic number, because the mean of its divisors is an integer number (4460120).

Almost surely, 213380357 is an apocalyptic number.

It is an amenable number.

13380357 is a deficient number, since it is larger than the sum of its proper divisors (4460123).

13380357 is an equidigital number, since it uses as much as digits as its factorization.

13380357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4460122.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 13380357 is about 3657.9170302236. The cubic root of 13380357 is about 237.4046568363.

Adding to 13380357 its reverse (75308331), we get a palindrome (88688688).

The spelling of 13380357 in words is "thirteen million, three hundred eighty thousand, three hundred fifty-seven".

Divisors: 1 3 4460119 13380357