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6679945072 = 243759191249
BaseRepresentation
bin1100011100010011…
…11101111101110000
3122020112111100222001
412032021331331300
5102140031220242
63022502223344
7324351411343
oct61611757560
918215440861
106679945072
112918722669
121365124b54
13825c05a28
1447524645a
15291697eb7
hex18e27df70

6679945072 has 40 divisors (see below), whose sum is σ = 13517550000. Its totient is φ = 3194606592.

The previous prime is 6679945067. The next prime is 6679945087. The reversal of 6679945072 is 2705499766.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60697 + ... + 130552.

It is an arithmetic number, because the mean of its divisors is an integer number (337938750).

Almost surely, 26679945072 is an apocalyptic number.

It is an amenable number.

6679945072 is an abundant number, since it is smaller than the sum of its proper divisors (6837604928).

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

6679945072 is a wasteful number, since it uses less digits than its factorization.

6679945072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191353 (or 191347 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 55.

The square root of 6679945072 is about 81730.9309380482. The cubic root of 6679945072 is about 1883.3207748625.

The spelling of 6679945072 in words is "six billion, six hundred seventy-nine million, nine hundred forty-five thousand, seventy-two".

Divisors: 1 2 4 8 16 37 59 74 118 148 236 296 472 592 944 2183 4366 8732 17464 34928 191249 382498 764996 1529992 3059984 7076213 11283691 14152426 22567382 28304852 45134764 56609704 90269528 113219408 180539056 417496567 834993134 1669986268 3339972536 6679945072