Search a number
-
+
12937855 = 573131181
BaseRepresentation
bin110001010110…
…101001111111
3220100022101211
4301112221333
511303002410
61141145251
7214653460
oct61265177
926308354
1012937855
117337447
1243bb227
1328acb48
141a0ad67
15120868a
hexc56a7f

12937855 has 16 divisors (see below), whose sum is σ = 17815104. Its totient is φ = 8835840.

The previous prime is 12937853. The next prime is 12937861. The reversal of 12937855 is 55873921.

12937855 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12937855 - 21 = 12937853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12937853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10365 + ... + 11545.

It is an arithmetic number, because the mean of its divisors is an integer number (1113444).

Almost surely, 212937855 is an apocalyptic number.

12937855 is a deficient number, since it is larger than the sum of its proper divisors (4877249).

12937855 is a wasteful number, since it uses less digits than its factorization.

12937855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506.

The product of its digits is 75600, while the sum is 40.

The square root of 12937855 is about 3596.9229905573. The cubic root of 12937855 is about 234.7581940105.

The spelling of 12937855 in words is "twelve million, nine hundred thirty-seven thousand, eight hundred fifty-five".

Divisors: 1 5 7 35 313 1181 1565 2191 5905 8267 10955 41335 369653 1848265 2587571 12937855