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10663445 = 513295657
BaseRepresentation
bin101000101011…
…011000010101
3202001202111102
4220223120111
510212212240
61020315445
7156431522
oct50533025
922052442
1010663445
116023671
1236a2b85
132294840
1415b8149
15e09815
hexa2b615

10663445 has 16 divisors (see below), whose sum is σ = 14258160. Its totient is φ = 7601664.

The previous prime is 10663439. The next prime is 10663459. The reversal of 10663445 is 54436601.

It is a happy number.

10663445 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 2328676 + 8334769 = 1526^2 + 2887^2 .

It is a cyclic number.

It is not a de Polignac number, because 10663445 - 26 = 10663381 is a prime.

It is a super-2 number, since 2×106634452 = 227418118536050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 944 + ... + 4713.

It is an arithmetic number, because the mean of its divisors is an integer number (891135).

Almost surely, 210663445 is an apocalyptic number.

It is an amenable number.

10663445 is a deficient number, since it is larger than the sum of its proper divisors (3594715).

10663445 is a wasteful number, since it uses less digits than its factorization.

10663445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5704.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 10663445 is about 3265.4930714978. The cubic root of 10663445 is about 220.1063191344.

The spelling of 10663445 in words is "ten million, six hundred sixty-three thousand, four hundred forty-five".

Divisors: 1 5 13 29 65 145 377 1885 5657 28285 73541 164053 367705 820265 2132689 10663445