Search a number
-
+
13380372 = 2232443839
BaseRepresentation
bin110011000010…
…101100010100
3221011210102100
4303002230110
511411132442
61154442100
7221505555
oct63025424
927153370
1013380372
117609965
124593330
132a063a5
141ac432c
15129484c
hexcc2b14

13380372 has 36 divisors (see below), whose sum is σ = 33939360. Its totient is φ = 4444752.

The previous prime is 13380371. The next prime is 13380401. The reversal of 13380372 is 27308331.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13380371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15529 + ... + 16367.

It is an arithmetic number, because the mean of its divisors is an integer number (942760).

Almost surely, 213380372 is an apocalyptic number.

13380372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13380372 is an abundant number, since it is smaller than the sum of its proper divisors (20558988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13380372 is a wasteful number, since it uses less digits than its factorization.

13380372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292 (or 1287 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 13380372 is about 3657.9190805703. The cubic root of 13380372 is about 237.4047455501.

The spelling of 13380372 in words is "thirteen million, three hundred eighty thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 36 443 839 886 1329 1678 1772 2517 2658 3356 3987 5034 5316 7551 7974 10068 15102 15948 30204 371677 743354 1115031 1486708 2230062 3345093 4460124 6690186 13380372