Search a number
-
+
13872957 = 37660617
BaseRepresentation
bin110100111010…
…111100111101
3222002211010020
4310322330331
512022413312
61213202353
7225626640
oct64727475
928084106
1013872957
117915a5a
1247903b9
132b49667
141bb1a57
15134078c
hexd3af3d

13872957 has 8 divisors (see below), whose sum is σ = 21139776. Its totient is φ = 7927392.

The previous prime is 13872931. The next prime is 13872959. The reversal of 13872957 is 75927831.

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

It is not a de Polignac number, because 13872957 - 26 = 13872893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13872959) 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, 330288 + ... + 330329.

It is an arithmetic number, because the mean of its divisors is an integer number (2642472).

Almost surely, 213872957 is an apocalyptic number.

It is an amenable number.

13872957 is a deficient number, since it is larger than the sum of its proper divisors (7266819).

13872957 is an equidigital number, since it uses as much as digits as its factorization.

13872957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660627.

The product of its digits is 105840, while the sum is 42.

The square root of 13872957 is about 3724.6418619781. The cubic root of 13872957 is about 240.2829821789.

The spelling of 13872957 in words is "thirteen million, eight hundred seventy-two thousand, nine hundred fifty-seven".

Divisors: 1 3 7 21 660617 1981851 4624319 13872957