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10664228 = 2229149617
BaseRepresentation
bin101000101011…
…100100100100
3202001210120102
4220223210210
510212223403
61020323232
7156434021
oct50534444
922053512
1010664228
116024213
1236a3518
132294cc3
1415b8548
15e09b88
hexa2b924

10664228 has 24 divisors (see below), whose sum is σ = 19467000. Its totient is φ = 5105408.

The previous prime is 10664221. The next prime is 10664243. The reversal of 10664228 is 82246601.

It can be written as a sum of positive squares in 4 ways, for example, as 153664 + 10510564 = 392^2 + 3242^2 .

It is a super-2 number, since 2×106642282 = 227451517671968, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 10664228.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16976 + ... + 17592.

It is an arithmetic number, because the mean of its divisors is an integer number (811125).

Almost surely, 210664228 is an apocalyptic number.

It is an amenable number.

10664228 is a deficient number, since it is larger than the sum of its proper divisors (8802772).

10664228 is a wasteful number, since it uses less digits than its factorization.

10664228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799 (or 797 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 10664228 is about 3265.6129593079. The cubic root of 10664228 is about 220.1117063562. Note that the first 3 decimals are identical.

The spelling of 10664228 in words is "ten million, six hundred sixty-four thousand, two hundred twenty-eight".

Divisors: 1 2 4 29 58 116 149 298 596 617 1234 2468 4321 8642 17284 17893 35786 71572 91933 183866 367732 2666057 5332114 10664228