Search a number
-
+
12339807 = 3171311847
BaseRepresentation
bin101111000100…
…101001011111
3212012221000220
4233010221133
511124333212
61120252423
7206613054
oct57045137
925187026
1012339807
116a69097
124171113
13273087c
1418d302b
15113b38c
hexbc4a5f

12339807 has 16 divisors (see below), whose sum is σ = 17563392. Its totient is φ = 7679360.

The previous prime is 12339793. The next prime is 12339823. The reversal of 12339807 is 70893321.

It is a cyclic number.

It is not a de Polignac number, because 12339807 - 210 = 12338783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12339307) 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, 5758 + ... + 7604.

It is an arithmetic number, because the mean of its divisors is an integer number (1097712).

Almost surely, 212339807 is an apocalyptic number.

12339807 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12339807 is a deficient number, since it is larger than the sum of its proper divisors (5223585).

12339807 is a wasteful number, since it uses less digits than its factorization.

12339807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 12339807 is about 3512.8061432422. The cubic root of 12339807 is about 231.0837761388.

The spelling of 12339807 in words is "twelve million, three hundred thirty-nine thousand, eight hundred seven".

Divisors: 1 3 17 51 131 393 1847 2227 5541 6681 31399 94197 241957 725871 4113269 12339807