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889280380 = 22544464019
BaseRepresentation
bin110101000000010…
…101011101111100
32021222100010100101
4311000111131330
53310123433010
6224124210444
731015521112
oct6500253574
92258303311
10889280380
11416a8056a
12209999a24
13112312411
1486169ab2
155311073a
hex3501577c

889280380 has 12 divisors (see below), whose sum is σ = 1867488840. Its totient is φ = 355712144.

The previous prime is 889280369. The next prime is 889280411. The reversal of 889280380 is 83082988.

889280380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 889280380.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22231990 + ... + 22232029.

It is an arithmetic number, because the mean of its divisors is an integer number (155624070).

Almost surely, 2889280380 is an apocalyptic number.

It is an amenable number.

889280380 is an abundant number, since it is smaller than the sum of its proper divisors (978208460).

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

889280380 is a wasteful number, since it uses less digits than its factorization.

889280380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44464028 (or 44464026 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 889280380 is about 29820.8044827768. The cubic root of 889280380 is about 961.6408497919.

The spelling of 889280380 in words is "eight hundred eighty-nine million, two hundred eighty thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 44464019 88928038 177856076 222320095 444640190 889280380