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6201078681 = 37523564607
BaseRepresentation
bin1011100011001110…
…01111001110011001
3121000011102102202210
411301213033032121
5100144434004211
62503154345333
7306445204410
oct56147171631
917004372683
106201078681
1126a2390216
12125088b249
1377a940035
1442b7d2477
152646069a6
hex1719cf399

6201078681 has 16 divisors (see below), whose sum is σ = 9467346944. Its totient is φ = 3536691984.

The previous prime is 6201078679. The next prime is 6201078701. The reversal of 6201078681 is 1868701026.

It is not a de Polignac number, because 6201078681 - 21 = 6201078679 is a prime.

It is a super-2 number, since 2×62010786812 = 76906753615905399522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6201078581) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 271321 + ... + 293286.

It is an arithmetic number, because the mean of its divisors is an integer number (591709184).

Almost surely, 26201078681 is an apocalyptic number.

It is an amenable number.

6201078681 is a deficient number, since it is larger than the sum of its proper divisors (3266268263).

6201078681 is a wasteful number, since it uses less digits than its factorization.

6201078681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565140.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 6201078681 is about 78746.9280734176. The cubic root of 6201078681 is about 1837.1970833347.

The spelling of 6201078681 in words is "six billion, two hundred one million, seventy-eight thousand, six hundred eighty-one".

Divisors: 1 3 7 21 523 1569 3661 10983 564607 1693821 3952249 11856747 295289461 885868383 2067026227 6201078681