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14638380 = 2235243973
BaseRepresentation
bin110111110101…
…110100101100
31000112201002020
4313311310230
512221412010
61241430140
7235265331
oct67656454
930481066
1014638380
118299039
124a9b350
133056b83
141d30988
151442470
hexdf5d2c

14638380 has 24 divisors (see below), whose sum is σ = 40987632. Its totient is φ = 3903552.

The previous prime is 14638369. The next prime is 14638381. The reversal of 14638380 is 8383641.

It is not an unprimeable number, because it can be changed into a prime (14638381) 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, 121927 + ... + 122046.

It is an arithmetic number, because the mean of its divisors is an integer number (1707818).

Almost surely, 214638380 is an apocalyptic number.

14638380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14638380 is an abundant number, since it is smaller than the sum of its proper divisors (26349252).

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

14638380 is a wasteful number, since it uses less digits than its factorization.

14638380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243985 (or 243983 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 14638380 is about 3826.0135911938. The cubic root of 14638380 is about 244.6232164854.

The spelling of 14638380 in words is "fourteen million, six hundred thirty-eight thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 243973 487946 731919 975892 1219865 1463838 2439730 2927676 3659595 4879460 7319190 14638380