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14638290 = 235487943
BaseRepresentation
bin110111110101…
…110011010010
31000112200221220
4313311303102
512221411130
61241425510
7235265142
oct67656322
930480856
1014638290
118298a67
124a9b296
133056b14
141d30922
151442410
hexdf5cd2

14638290 has 16 divisors (see below), whose sum is σ = 35131968. Its totient is φ = 3903536.

The previous prime is 14638289. The next prime is 14638297. The reversal of 14638290 is 9283641.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14638297) 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, 243942 + ... + 244001.

It is an arithmetic number, because the mean of its divisors is an integer number (2195748).

Almost surely, 214638290 is an apocalyptic number.

14638290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14638290 is an abundant number, since it is smaller than the sum of its proper divisors (20493678).

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

14638290 is a wasteful number, since it uses less digits than its factorization.

14638290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487953.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 14638290 is about 3826.0018295866. The cubic root of 14638290 is about 244.6227151519.

The spelling of 14638290 in words is "fourteen million, six hundred thirty-eight thousand, two hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 487943 975886 1463829 2439715 2927658 4879430 7319145 14638290