Search a number
-
+
14978830 = 259671549
BaseRepresentation
bin111001001000…
…111100001110
31001012000002111
4321020330032
512313310310
61253014234
7241214026
oct71107416
931160074
1014978830
1185008a9
12502437a
133145b19
141dbca86
1514ad28a
hexe48f0e

14978830 has 16 divisors (see below), whose sum is σ = 27007200. Its totient is φ = 5981472.

The previous prime is 14978827. The next prime is 14978839. The reversal of 14978830 is 3887941.

14978830 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 not an unprimeable number, because it can be changed into a prime (14978839) 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, 8896 + ... + 10444.

It is an arithmetic number, because the mean of its divisors is an integer number (1687950).

Almost surely, 214978830 is an apocalyptic number.

14978830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14978830 is a deficient number, since it is larger than the sum of its proper divisors (12028370).

14978830 is a wasteful number, since it uses less digits than its factorization.

14978830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 14978830 is about 3870.2493459724. The cubic root of 14978830 is about 246.5051312316.

The spelling of 14978830 in words is "fourteen million, nine hundred seventy-eight thousand, eight hundred thirty".

Divisors: 1 2 5 10 967 1549 1934 3098 4835 7745 9670 15490 1497883 2995766 7489415 14978830