Search a number
-
+
12923880 = 2335107699
BaseRepresentation
bin110001010011…
…001111101000
3220022121020020
4301103033220
511302031010
61141000440
7214564644
oct61231750
926277206
1012923880
1173279a2
1243b3120
1328a6688
141a05c24
151204470
hexc533e8

12923880 has 32 divisors (see below), whose sum is σ = 38772000. Its totient is φ = 3446336.

The previous prime is 12923873. The next prime is 12923903. The reversal of 12923880 is 8832921.

12923880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 53730 + ... + 53969.

It is an arithmetic number, because the mean of its divisors is an integer number (1211625).

Almost surely, 212923880 is an apocalyptic number.

12923880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12923880 is an abundant number, since it is smaller than the sum of its proper divisors (25848120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12923880 is a wasteful number, since it uses less digits than its factorization.

12923880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107713 (or 107709 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 12923880 is about 3594.9798330450. The cubic root of 12923880 is about 234.6736378066.

The spelling of 12923880 in words is "twelve million, nine hundred twenty-three thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 107699 215398 323097 430796 538495 646194 861592 1076990 1292388 1615485 2153980 2584776 3230970 4307960 6461940 12923880