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6868956869 = 43173923371
BaseRepresentation
bin1100110010110101…
…11111011011000101
3122201201011011101222
412121122333123011
5103031423104434
63053333330125
7332135112215
oct63132773305
918651134358
106868956869
112a0538aa65
1213b8496945
13856113728
144923a8245
152a308172e
hex1996bf6c5

6868956869 has 8 divisors (see below), whose sum is σ = 7069336032. Its totient is φ = 6670424880.

The previous prime is 6868956851. The next prime is 6868956889. The reversal of 6868956869 is 9686598686.

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

It is not a de Polignac number, because 6868956869 - 28 = 6868956613 is a prime.

It is a super-2 number, since 2×68689568692 = 94365136936364566322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6868956839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454247 + ... + 469124.

It is an arithmetic number, because the mean of its divisors is an integer number (883667004).

Almost surely, 26868956869 is an apocalyptic number.

It is an amenable number.

6868956869 is a deficient number, since it is larger than the sum of its proper divisors (200379163).

6868956869 is a wasteful number, since it uses less digits than its factorization.

6868956869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923587.

The product of its digits is 268738560, while the sum is 71.

The square root of 6868956869 is about 82879.1702962813. The cubic root of 6868956869 is about 1900.9189339721.

The spelling of 6868956869 in words is "six billion, eight hundred sixty-eight million, nine hundred fifty-six thousand, eight hundred sixty-nine".

Divisors: 1 43 173 7439 923371 39704953 159743183 6868956869