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2389894808 = 23742676693
BaseRepresentation
bin1000111001110010…
…1110011010011000
320011120000020100112
42032130232122120
514343303113213
61033051423452
7113136525230
oct21634563230
96146006315
102389894808
111017040384
12568454b88
132c118b252
1418958ccc0
15dec2bea8
hex8e72e698

2389894808 has 16 divisors (see below), whose sum is σ = 5121203280. Its totient is φ = 1024240608.

The previous prime is 2389894751. The next prime is 2389894813. The reversal of 2389894808 is 8084989832.

2389894808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 21338291 + ... + 21338402.

It is an arithmetic number, because the mean of its divisors is an integer number (320075205).

Almost surely, 22389894808 is an apocalyptic number.

2389894808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2389894808 is an abundant number, since it is smaller than the sum of its proper divisors (2731308472).

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

2389894808 is a wasteful number, since it uses less digits than its factorization.

2389894808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42676706 (or 42676702 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 59.

The square root of 2389894808 is about 48886.5503794244. The cubic root of 2389894808 is about 1336.9841598643.

The spelling of 2389894808 in words is "two billion, three hundred eighty-nine million, eight hundred ninety-four thousand, eight hundred eight".

Divisors: 1 2 4 7 8 14 28 56 42676693 85353386 170706772 298736851 341413544 597473702 1194947404 2389894808