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10820648 = 2310912409
BaseRepresentation
bin101001010001…
…110000101000
3202100202010202
4221101300220
510232230043
61023531332
7160655036
oct51216050
922322122
1010820648
116120793
123759b48
13231b267
141619556
15e3b1b8
hexa51c28

10820648 has 16 divisors (see below), whose sum is σ = 20476500. Its totient is φ = 5360256.

The previous prime is 10820647. The next prime is 10820651. The reversal of 10820648 is 84602801.

It can be written as a sum of positive squares in 2 ways, for example, as 10355524 + 465124 = 3218^2 + 682^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10820648.

It is not an unprimeable number, because it can be changed into a prime (10820647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5333 + ... + 7076.

Almost surely, 210820648 is an apocalyptic number.

It is an amenable number.

10820648 is a deficient number, since it is larger than the sum of its proper divisors (9655852).

10820648 is a wasteful number, since it uses less digits than its factorization.

10820648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12524 (or 12520 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 10820648 is about 3289.4753381048. The cubic root of 10820648 is about 221.1826666906.

The spelling of 10820648 in words is "ten million, eight hundred twenty thousand, six hundred forty-eight".

Divisors: 1 2 4 8 109 218 436 872 12409 24818 49636 99272 1352581 2705162 5410324 10820648