Search a number
-
+
12894693 = 37287719
BaseRepresentation
bin110001001100…
…000111100101
3220021010012020
4301030013211
511300112233
61140213353
7214413600
oct61140745
926233166
1012894693
117307a79
12439a259
1328962c6
1419d9337
1511ea9b3
hexc4c1e5

12894693 has 12 divisors (see below), whose sum is σ = 20000160. Its totient is φ = 7368312.

The previous prime is 12894689. The next prime is 12894701. The reversal of 12894693 is 39649821.

It is not a de Polignac number, because 12894693 - 22 = 12894689 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12894643) 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 11 ways as a sum of consecutive naturals, for example, 43713 + ... + 44006.

It is an arithmetic number, because the mean of its divisors is an integer number (1666680).

Almost surely, 212894693 is an apocalyptic number.

It is an amenable number.

12894693 is a deficient number, since it is larger than the sum of its proper divisors (7105467).

12894693 is an equidigital number, since it uses as much as digits as its factorization.

12894693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87736 (or 87729 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 12894693 is about 3590.9181277217. The cubic root of 12894693 is about 234.4968440950.

The spelling of 12894693 in words is "twelve million, eight hundred ninety-four thousand, six hundred ninety-three".

Divisors: 1 3 7 21 49 147 87719 263157 614033 1842099 4298231 12894693