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6868064089 = 62819109331
BaseRepresentation
bin1100110010101111…
…00101011101011001
3122201122110210202001
412121113211131121
5103031211022324
63053302241001
7332124403315
oct63127453531
918648423661
106868064089
112a04930227
1213b8126161
13855b90263
14492214b45
152a2e56e44
hex1995e5759

6868064089 has 4 divisors (see below), whose sum is σ = 6868236240. Its totient is φ = 6867891940.

The previous prime is 6868064069. The next prime is 6868064123. The reversal of 6868064089 is 9804608686.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6868064089 - 215 = 6868031321 is a prime.

It is a super-2 number, since 2×68680640892 = 94340608661222799842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6868064009) 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 3 ways as a sum of consecutive naturals, for example, 8154 + ... + 117484.

It is an arithmetic number, because the mean of its divisors is an integer number (1717059060).

Almost surely, 26868064089 is an apocalyptic number.

It is an amenable number.

6868064089 is a deficient number, since it is larger than the sum of its proper divisors (172151).

6868064089 is a wasteful number, since it uses less digits than its factorization.

6868064089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172150.

The product of its (nonzero) digits is 3981312, while the sum is 55.

The square root of 6868064089 is about 82873.7840876112. The cubic root of 6868064089 is about 1900.8365742597.

The spelling of 6868064089 in words is "six billion, eight hundred sixty-eight million, sixty-four thousand, eighty-nine".

Divisors: 1 62819 109331 6868064089