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14622820 = 225731141
BaseRepresentation
bin110111110010…
…000001100100
31000111220201221
4313302001210
512220412240
61241230124
7235202062
oct67620144
930456657
1014622820
118288383
124a92344
13304ca74
141d29032
15143ca4a
hexdf2064

14622820 has 12 divisors (see below), whose sum is σ = 30707964. Its totient is φ = 5849120.

The previous prime is 14622791. The next prime is 14622833. The reversal of 14622820 is 2822641.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2637376 + 11985444 = 1624^2 + 3462^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365551 + ... + 365590.

It is an arithmetic number, because the mean of its divisors is an integer number (2558997).

Almost surely, 214622820 is an apocalyptic number.

14622820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14622820 is an abundant number, since it is smaller than the sum of its proper divisors (16085144).

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

14622820 is a wasteful number, since it uses less digits than its factorization.

14622820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731150 (or 731148 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 14622820 is about 3823.9796024561. The cubic root of 14622820 is about 244.5365109277.

The spelling of 14622820 in words is "fourteen million, six hundred twenty-two thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 731141 1462282 2924564 3655705 7311410 14622820