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14312920 = 235357823
BaseRepresentation
bin110110100110…
…010111011000
3222221011122011
4312212113120
512131003140
61230435304
7232441426
oct66462730
928834564
1014312920
118096566
124962b34
132c719ab
141c88116
1513cacea
hexda65d8

14312920 has 16 divisors (see below), whose sum is σ = 32204160. Its totient is φ = 5725152.

The previous prime is 14312911. The next prime is 14312933. The reversal of 14312920 is 2921341.

It is a junction number, because it is equal to n+sod(n) for n = 14312891 and 14312900.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178872 + ... + 178951.

It is an arithmetic number, because the mean of its divisors is an integer number (2012760).

Almost surely, 214312920 is an apocalyptic number.

14312920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14312920 is an abundant number, since it is smaller than the sum of its proper divisors (17891240).

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

14312920 is a wasteful number, since it uses less digits than its factorization.

14312920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357834 (or 357830 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 14312920 is about 3783.2419959606. The cubic root of 14312920 is about 242.7966822635.

The spelling of 14312920 in words is "fourteen million, three hundred twelve thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 357823 715646 1431292 1789115 2862584 3578230 7156460 14312920