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10644490 = 254612309
BaseRepresentation
bin101000100110…
…110000001010
3202000210111101
4220212300022
510211110430
61020052014
7156322333
oct50466012
922023441
1010644490
1160103aa
12369400a
13228901c
1415b128a
15e03dca
hexa26c0a

10644490 has 16 divisors (see below), whose sum is σ = 19209960. Its totient is φ = 4246720.

The previous prime is 10644451. The next prime is 10644509. The reversal of 10644490 is 9444601.

It can be written as a sum of positive squares in 4 ways, for example, as 9235521 + 1408969 = 3039^2 + 1187^2 .

It is a super-2 number, since 2×106444902 = 226610334720200, which contains 22 as substring.

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, 3456 + ... + 5764.

Almost surely, 210644490 is an apocalyptic number.

10644490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10644490 is a deficient number, since it is larger than the sum of its proper divisors (8565470).

10644490 is a wasteful number, since it uses less digits than its factorization.

10644490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2777.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 10644490 is about 3262.5894623749. The cubic root of 10644490 is about 219.9758237896.

The spelling of 10644490 in words is "ten million, six hundred forty-four thousand, four hundred ninety".

Divisors: 1 2 5 10 461 922 2305 2309 4610 4618 11545 23090 1064449 2128898 5322245 10644490