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6379679980 = 225446371473
BaseRepresentation
bin1011111000100001…
…00011000011101100
3121110121111022200201
411330100203003230
5101031144224410
62533014403244
7314044246042
oct57420430354
917417438621
106379679980
112784187aa3
1212a0660524
137a894438b
14447404392
1527513583a
hex17c4230ec

6379679980 has 24 divisors (see below), whose sum is σ = 13400517312. Its totient is φ = 2551264512.

The previous prime is 6379679953. The next prime is 6379680001. The reversal of 6379679980 is 899769736.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53524 + ... + 124996.

It is an arithmetic number, because the mean of its divisors is an integer number (558354888).

Almost surely, 26379679980 is an apocalyptic number.

It is an amenable number.

6379679980 is an abundant number, since it is smaller than the sum of its proper divisors (7020837332).

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

6379679980 is a wasteful number, since it uses less digits than its factorization.

6379679980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75945 (or 75943 counting only the distinct ones).

The product of its (nonzero) digits is 30862944, while the sum is 64.

The square root of 6379679980 is about 79872.8989082029. The cubic root of 6379679980 is about 1854.6685089975.

The spelling of 6379679980 in words is "six billion, three hundred seventy-nine million, six hundred seventy-nine thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 4463 8926 17852 22315 44630 71473 89260 142946 285892 357365 714730 1429460 318983999 637967998 1275935996 1594919995 3189839990 6379679980