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10664251 = 133722171
BaseRepresentation
bin101000101011…
…100100111011
3202001210121021
4220223210323
510212224001
61020323311
7156434053
oct50534473
922053537
1010664251
116024234
1236a3537
132295010
1415b8563
15e09ba1
hexa2b93b

10664251 has 8 divisors (see below), whose sum is σ = 11795504. Its totient is φ = 9577440.

The previous prime is 10664243. The next prime is 10664267. The reversal of 10664251 is 15246601.

10664251 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 10664251 - 23 = 10664243 is a prime.

It is a super-2 number, since 2×106642512 = 227452498782002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10664221) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10605 + ... + 11566.

It is an arithmetic number, because the mean of its divisors is an integer number (1474438).

Almost surely, 210664251 is an apocalyptic number.

10664251 is a deficient number, since it is larger than the sum of its proper divisors (1131253).

10664251 is a wasteful number, since it uses less digits than its factorization.

10664251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22221.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 10664251 is about 3265.6164808501. The cubic root of 10664251 is about 220.1118645976. Note that the first 3 decimals are identical.

The spelling of 10664251 in words is "ten million, six hundred sixty-four thousand, two hundred fifty-one".

Divisors: 1 13 37 481 22171 288223 820327 10664251