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2039147808 = 25321241123
BaseRepresentation
bin111100110001010…
…1110110100100000
312021010000102220220
41321202232310200
513134010212213
6534202003040
7101350320225
oct17142566440
95233012826
102039147808
11957055a25
1248aaa6480
13266603049
14154b6994c
15be046e23
hex798aed20

2039147808 has 24 divisors (see below), whose sum is σ = 5352763248. Its totient is φ = 679715904.

The previous prime is 2039147801. The next prime is 2039147809. The reversal of 2039147808 is 8087419302.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2039147808.

It is not an unprimeable number, because it can be changed into a prime (2039147801) 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, 10620466 + ... + 10620657.

It is an arithmetic number, because the mean of its divisors is an integer number (223031802).

Almost surely, 22039147808 is an apocalyptic number.

It is an amenable number.

2039147808 is an abundant number, since it is smaller than the sum of its proper divisors (3313615440).

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

2039147808 is a wasteful number, since it uses less digits than its factorization.

2039147808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21241136 (or 21241128 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 2039147808 is about 45156.9242530977. The cubic root of 2039147808 is about 1268.0885142893.

The spelling of 2039147808 in words is "two billion, thirty-nine million, one hundred forty-seven thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 21241123 42482246 63723369 84964492 127446738 169928984 254893476 339857968 509786952 679715936 1019573904 2039147808