Search a number
-
+
12950911 = 103125737
BaseRepresentation
bin110001011001…
…110101111111
3220100222022101
4301121311333
511303412121
61141325531
7215036521
oct61316577
926328271
1012950911
117346236
1244068a7
1328b5a7c
141a11a11
15120c491
hexc59d7f

12950911 has 4 divisors (see below), whose sum is σ = 13076752. Its totient is φ = 12825072.

The previous prime is 12950891. The next prime is 12950941. The reversal of 12950911 is 11905921.

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 12950911 - 211 = 12948863 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12950911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12950941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62766 + ... + 62971.

It is an arithmetic number, because the mean of its divisors is an integer number (3269188).

Almost surely, 212950911 is an apocalyptic number.

12950911 is a deficient number, since it is larger than the sum of its proper divisors (125841).

12950911 is a wasteful number, since it uses less digits than its factorization.

12950911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125840.

The product of its (nonzero) digits is 810, while the sum is 28.

The square root of 12950911 is about 3598.7374174841. The cubic root of 12950911 is about 234.8371347767.

It can be divided in two parts, 12950 and 911, that added together give a triangular number (13861 = T166).

The spelling of 12950911 in words is "twelve million, nine hundred fifty thousand, nine hundred eleven".

Divisors: 1 103 125737 12950911