Search a number
-
+
13380747 = 331143879
BaseRepresentation
bin110011000010…
…110010001011
3221011210221020
4303002302023
511411140442
61154443523
7221506632
oct63026213
927153836
1013380747
11760a176
1245935a3
132a06603
141ac4519
1512949ec
hexcc2c8b

13380747 has 8 divisors (see below), whose sum is σ = 18416640. Its totient is φ = 8632680.

The previous prime is 13380743. The next prime is 13380749. The reversal of 13380747 is 74708331.

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

It is not a de Polignac number, because 13380747 - 22 = 13380743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13380743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71847 + ... + 72032.

It is an arithmetic number, because the mean of its divisors is an integer number (2302080).

Almost surely, 213380747 is an apocalyptic number.

13380747 is a deficient number, since it is larger than the sum of its proper divisors (5035893).

13380747 is a wasteful number, since it uses less digits than its factorization.

13380747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143913.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 13380747 is about 3657.9703388628. The cubic root of 13380747 is about 237.4069633746.

The spelling of 13380747 in words is "thirteen million, three hundred eighty thousand, seven hundred forty-seven".

Divisors: 1 3 31 93 143879 431637 4460249 13380747