Search a number
-
+
13857673 = 30745139
BaseRepresentation
bin110100110111…
…001110001001
3222002001011011
4310313032021
512021421143
61213003521
7225534244
oct64671611
928061134
1013857673
117905525
1247835a1
132b4270b
141baa25b
15133ae9d
hexd37389

13857673 has 4 divisors (see below), whose sum is σ = 13903120. Its totient is φ = 13812228.

The previous prime is 13857667. The next prime is 13857691. The reversal of 13857673 is 37675831.

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 a cyclic number.

It is not a de Polignac number, because 13857673 - 213 = 13849481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13857073) 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, 22263 + ... + 22876.

It is an arithmetic number, because the mean of its divisors is an integer number (3475780).

Almost surely, 213857673 is an apocalyptic number.

It is an amenable number.

13857673 is a deficient number, since it is larger than the sum of its proper divisors (45447).

13857673 is an equidigital number, since it uses as much as digits as its factorization.

13857673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45446.

The product of its digits is 105840, while the sum is 40.

The square root of 13857673 is about 3722.5895556722. The cubic root of 13857673 is about 240.1947088906.

The spelling of 13857673 in words is "thirteen million, eight hundred fifty-seven thousand, six hundred seventy-three".

Divisors: 1 307 45139 13857673