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10668447 = 321185383
BaseRepresentation
bin101000101100…
…100110011111
3202002000100200
4220230212133
510212342242
61020354543
7156452226
oct50544637
922060320
1010668447
1160273a9
1236a5a53
132296bba
1415b9cbd
15e0b04c
hexa2c99f

10668447 has 6 divisors (see below), whose sum is σ = 15409992. Its totient is φ = 7112292.

The previous prime is 10668421. The next prime is 10668521. The reversal of 10668447 is 74486601.

It is not a de Polignac number, because 10668447 - 214 = 10652063 is a prime.

It is a super-2 number, since 2×106684472 = 227631522783618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10668407) 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 5 ways as a sum of consecutive naturals, for example, 592683 + ... + 592700.

It is an arithmetic number, because the mean of its divisors is an integer number (2568332).

Almost surely, 210668447 is an apocalyptic number.

10668447 is a deficient number, since it is larger than the sum of its proper divisors (4741545).

10668447 is a wasteful number, since it uses less digits than its factorization.

10668447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185389 (or 1185386 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 10668447 is about 3266.2588691039. The cubic root of 10668447 is about 220.1407295182.

The spelling of 10668447 in words is "ten million, six hundred sixty-eight thousand, four hundred forty-seven".

Divisors: 1 3 9 1185383 3556149 10668447