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2978075904 = 2833877703
BaseRepresentation
bin1011000110000001…
…1101010100000000
321200112202221010120
42301200131110000
522044341412104
61211302300240
7133541141016
oct26140352400
97615687116
102978075904
111299056561
126b1427680
13385ca93bb
1420373a8b6
151266b2cd9
hexb181d500

2978075904 has 36 divisors (see below), whose sum is σ = 7926026976. Its totient is φ = 992691712.

The previous prime is 2978075887. The next prime is 2978075909. The reversal of 2978075904 is 4095708792.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978075909) 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, 1938084 + ... + 1939619.

It is an arithmetic number, because the mean of its divisors is an integer number (220167416).

Almost surely, 22978075904 is an apocalyptic number.

2978075904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2978075904 is an abundant number, since it is smaller than the sum of its proper divisors (4947951072).

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

2978075904 is an equidigital number, since it uses as much as digits as its factorization.

2978075904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3877722 (or 3877708 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 51.

The square root of 2978075904 is about 54571.7500544009. The cubic root of 2978075904 is about 1438.7276415298.

The spelling of 2978075904 in words is "two billion, nine hundred seventy-eight million, seventy-five thousand, nine hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 768 3877703 7755406 11633109 15510812 23266218 31021624 46532436 62043248 93064872 124086496 186129744 248172992 372259488 496345984 744518976 992691968 1489037952 2978075904