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10664645 = 54349603
BaseRepresentation
bin101000101011…
…101011000101
3202001211010212
4220223223011
510212232040
61020325205
7156435155
oct50535305
922054125
1010664645
116024562
1236a3805
132295254
1415b8765
15e09d65
hexa2bac5

10664645 has 8 divisors (see below), whose sum is σ = 13095456. Its totient is φ = 8333136.

The previous prime is 10664639. The next prime is 10664659. The reversal of 10664645 is 54646601.

10664645 is digitally balanced in base 2 and base 3, because in such bases 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 10664645 - 26 = 10664581 is a prime.

It is a super-2 number, since 2×106646452 = 227469305952050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24587 + ... + 25016.

It is an arithmetic number, because the mean of its divisors is an integer number (1636932).

Almost surely, 210664645 is an apocalyptic number.

It is an amenable number.

10664645 is a deficient number, since it is larger than the sum of its proper divisors (2430811).

10664645 is an equidigital number, since it uses as much as digits as its factorization.

10664645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49651.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 10664645 is about 3265.6768058092. The cubic root of 10664645 is about 220.1145753054.

The spelling of 10664645 in words is "ten million, six hundred sixty-four thousand, six hundred forty-five".

Divisors: 1 5 43 215 49603 248015 2132929 10664645