Search a number
-
+
12953215 = 511235513
BaseRepresentation
bin110001011010…
…011001111111
3220101002110201
4301122121333
511304000330
61141344331
7215046322
oct61323177
926332421
1012953215
117347a40
1244080a7
1328b6b32
141a127b9
15120ceca
hexc5a67f

12953215 has 8 divisors (see below), whose sum is σ = 16957008. Its totient is φ = 9420480.

The previous prime is 12953203. The next prime is 12953221. The reversal of 12953215 is 51235921.

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

It is not a de Polignac number, because 12953215 - 25 = 12953183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117702 + ... + 117811.

It is an arithmetic number, because the mean of its divisors is an integer number (2119626).

Almost surely, 212953215 is an apocalyptic number.

12953215 is a deficient number, since it is larger than the sum of its proper divisors (4003793).

12953215 is a wasteful number, since it uses less digits than its factorization.

12953215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235529.

The product of its digits is 2700, while the sum is 28.

The square root of 12953215 is about 3599.0575155171. The cubic root of 12953215 is about 234.8510599922.

The spelling of 12953215 in words is "twelve million, nine hundred fifty-three thousand, two hundred fifteen".

Divisors: 1 5 11 55 235513 1177565 2590643 12953215