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14664621 = 316329989
BaseRepresentation
bin110111111100…
…001110101101
31000121001002010
4313330032231
512223231441
61242151433
7235434666
oct67741655
930531063
1014664621
118306824
124ab2579
133065aba
141d3a36d
15144a116
hexdfc3ad

14664621 has 8 divisors (see below), whose sum is σ = 19673440. Its totient is φ = 9716112.

The previous prime is 14664613. The next prime is 14664649. The reversal of 14664621 is 12646641.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14664621 - 23 = 14664613 is a prime.

It is a super-2 number, since 2×146646212 = 430102218147282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14664121) 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, 14506 + ... + 15483.

It is an arithmetic number, because the mean of its divisors is an integer number (2459180).

Almost surely, 214664621 is an apocalyptic number.

It is an amenable number.

14664621 is a deficient number, since it is larger than the sum of its proper divisors (5008819).

14664621 is a wasteful number, since it uses less digits than its factorization.

14664621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30155.

The product of its digits is 6912, while the sum is 30.

The square root of 14664621 is about 3829.4413430682. The cubic root of 14664621 is about 244.7693010919.

The spelling of 14664621 in words is "fourteen million, six hundred sixty-four thousand, six hundred twenty-one".

Divisors: 1 3 163 489 29989 89967 4888207 14664621