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10663745 = 52132749
BaseRepresentation
bin101000101011…
…011101000001
3202001202220112
4220223131001
510212214440
61020321105
7156432431
oct50533501
922052815
1010663745
116023914
1236a3195
132294a11
1415b82c1
15e09965
hexa2b741

10663745 has 4 divisors (see below), whose sum is σ = 12796500. Its totient is φ = 8530992.

The previous prime is 10663739. The next prime is 10663747. The reversal of 10663745 is 54736601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4592449 + 6071296 = 2143^2 + 2464^2 .

It is a cyclic number.

It is not a de Polignac number, because 10663745 - 210 = 10662721 is a prime.

It is a super-2 number, since 2×106637452 = 227430914850050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10663747) by changing a digit.

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, 1066370 + ... + 1066379.

It is an arithmetic number, because the mean of its divisors is an integer number (3199125).

Almost surely, 210663745 is an apocalyptic number.

It is an amenable number.

10663745 is a deficient number, since it is larger than the sum of its proper divisors (2132755).

10663745 is an equidigital number, since it uses as much as digits as its factorization.

10663745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132754.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 10663745 is about 3265.5390060448. The cubic root of 10663745 is about 220.1083832352.

The spelling of 10663745 in words is "ten million, six hundred sixty-three thousand, seven hundred forty-five".

Divisors: 1 5 2132749 10663745