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6671879930 = 25667187993
BaseRepresentation
bin1100011011010110…
…01100111011111010
3122012222022121200002
412031223030323322
5102131000124210
63022013313002
7324223020662
oct61553147372
918188277602
106671879930
112914114161
121362495762
13824340a61
144741471a2
15290b034a5
hex18daccefa

6671879930 has 8 divisors (see below), whose sum is σ = 12009383892. Its totient is φ = 2668751968.

The previous prime is 6671879873. The next prime is 6671879953. The reversal of 6671879930 is 399781766.

It can be written as a sum of positive squares in 2 ways, for example, as 6227892889 + 443987041 = 78917^2 + 21071^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 333593987 + ... + 333594006.

Almost surely, 26671879930 is an apocalyptic number.

6671879930 is a deficient number, since it is larger than the sum of its proper divisors (5337503962).

6671879930 is a wasteful number, since it uses less digits than its factorization.

6671879930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667188000.

The product of its (nonzero) digits is 3429216, while the sum is 56.

The square root of 6671879930 is about 81681.5764416922. The cubic root of 6671879930 is about 1882.5625168021.

The spelling of 6671879930 in words is "six billion, six hundred seventy-one million, eight hundred seventy-nine thousand, nine hundred thirty".

Divisors: 1 2 5 10 667187993 1334375986 3335939965 6671879930