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6879680984 = 2311778910037
BaseRepresentation
bin1100110100000111…
…11001100111011000
3122202110100000010102
412122003321213120
5103042144242414
63054355234532
7332325215651
oct63203714730
918673300112
106879680984
112a10445170
1213bbba8a48
138583c9a67
1449399a528
152a3e9dede
hex19a0f99d8

6879680984 has 32 divisors (see below), whose sum is σ = 14075283600. Its totient is φ = 3126414720.

The previous prime is 6879680981. The next prime is 6879681001. The reversal of 6879680984 is 4890869786.

It is a super-2 number, since 2×68796809842 = 94660020883222416512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6879680984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6879680981) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 680414 + ... + 690450.

Almost surely, 26879680984 is an apocalyptic number.

It is an amenable number.

6879680984 is an abundant number, since it is smaller than the sum of its proper divisors (7195602616).

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

6879680984 is a wasteful number, since it uses less digits than its factorization.

6879680984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17843 (or 17839 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 65.

The square root of 6879680984 is about 82943.8423513162. The cubic root of 6879680984 is about 1901.9076854344.

The spelling of 6879680984 in words is "six billion, eight hundred seventy-nine million, six hundred eighty thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 11 22 44 88 7789 10037 15578 20074 31156 40148 62312 80296 85679 110407 171358 220814 342716 441628 685432 883256 78178193 156356386 312712772 625425544 859960123 1719920246 3439840492 6879680984