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9828880 = 245122861
BaseRepresentation
bin100101011111…
…101000010000
3200111100200121
4211133220100
510004011010
6550400024
7146354425
oct45375020
920440617
109828880
115603646
123360014
132061a09
14143bd4c
15ce23da
hex95fa10

9828880 has 20 divisors (see below), whose sum is σ = 22852332. Its totient is φ = 3931520.

The previous prime is 9828877. The next prime is 9828881. The reversal of 9828880 is 888289.

It can be written as a sum of positive squares in 2 ways, for example, as 7420176 + 2408704 = 2724^2 + 1552^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (9828881) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 61351 + ... + 61510.

Almost surely, 29828880 is an apocalyptic number.

It is an amenable number.

9828880 is an abundant number, since it is smaller than the sum of its proper divisors (13023452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9828880 is a wasteful number, since it uses less digits than its factorization.

9828880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122874 (or 122868 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 43.

The square root of 9828880 is about 3135.1044639693. The cubic root of 9828880 is about 214.2075024623.

The spelling of 9828880 in words is "nine million, eight hundred twenty-eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 122861 245722 491444 614305 982888 1228610 1965776 2457220 4914440 9828880