Search a number
-
+
13580371 = 71940053
BaseRepresentation
bin110011110011…
…100001010011
3221112221202201
4303303201103
511434032441
61203024031
7223300630
oct63634123
927487681
1013580371
117736152
12466b017
132a7642c
141b37187
1512d3c31
hexcf3853

13580371 has 4 divisors (see below), whose sum is σ = 15520432. Its totient is φ = 11640312.

The previous prime is 13580353. The next prime is 13580401. The reversal of 13580371 is 17308531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13580371 - 25 = 13580339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13580311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 970020 + ... + 970033.

It is an arithmetic number, because the mean of its divisors is an integer number (3880108).

Almost surely, 213580371 is an apocalyptic number.

13580371 is a deficient number, since it is larger than the sum of its proper divisors (1940061).

13580371 is an equidigital number, since it uses as much as digits as its factorization.

13580371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940060.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 13580371 is about 3685.1554919705. The cubic root of 13580371 is about 238.5817454376.

The spelling of 13580371 in words is "thirteen million, five hundred eighty thousand, three hundred seventy-one".

Divisors: 1 7 1940053 13580371