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7994522980 = 225399726149
BaseRepresentation
bin1110111001000001…
…01011110101100100
3202122011002211211201
413130200223311210
5112333044213410
63401142212244
7402053216113
oct73440536544
922564084751
107994522980
113432777494
121671424084
139a5376192
1455ba7dc7a
1531bcb783a
hex1dc82bd64

7994522980 has 12 divisors (see below), whose sum is σ = 16788498300. Its totient is φ = 3197809184.

The previous prime is 7994522971. The next prime is 7994523023. The reversal of 7994522980 is 892254997.

It can be written as a sum of positive squares in 2 ways, for example, as 2243727424 + 5750795556 = 47368^2 + 75834^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199863055 + ... + 199863094.

It is an arithmetic number, because the mean of its divisors is an integer number (1399041525).

Almost surely, 27994522980 is an apocalyptic number.

It is an amenable number.

7994522980 is an abundant number, since it is smaller than the sum of its proper divisors (8793975320).

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

7994522980 is a wasteful number, since it uses less digits than its factorization.

7994522980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399726158 (or 399726156 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 55.

The square root of 7994522980 is about 89412.0963852207. The cubic root of 7994522980 is about 1999.5434774682.

The spelling of 7994522980 in words is "seven billion, nine hundred ninety-four million, five hundred twenty-two thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 399726149 799452298 1598904596 1998630745 3997261490 7994522980