Search a number
-
+
12938115 = 35862541
BaseRepresentation
bin110001010110…
…101110000011
3220100022202110
4301112232003
511303004430
61141150403
7214654311
oct61265603
926308673
1012938115
117337663
1243bb403
1328accb8
141a0b0b1
1512087b0
hexc56b83

12938115 has 8 divisors (see below), whose sum is σ = 20701008. Its totient is φ = 6900320.

The previous prime is 12938111. The next prime is 12938131. The reversal of 12938115 is 51183921.

12938115 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12938115 - 22 = 12938111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12938111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431256 + ... + 431285.

It is an arithmetic number, because the mean of its divisors is an integer number (2587626).

Almost surely, 212938115 is an apocalyptic number.

12938115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12938115 is a deficient number, since it is larger than the sum of its proper divisors (7762893).

12938115 is an equidigital number, since it uses as much as digits as its factorization.

12938115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862549.

The product of its digits is 2160, while the sum is 30.

The square root of 12938115 is about 3596.9591323783. The cubic root of 12938115 is about 234.7597665721.

The spelling of 12938115 in words is "twelve million, nine hundred thirty-eight thousand, one hundred fifteen".

Divisors: 1 3 5 15 862541 2587623 4312705 12938115