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6912916085 = 51382583217
BaseRepresentation
bin1100111000000101…
…01011101001110101
3122211202212112010002
412130002223221311
5103124201303320
63101543441045
7333210550205
oct63402535165
918752775102
106912916085
112a28185199
12140b156185
138622653ba
1449816c405
152a6d66675
hex19c0aba75

6912916085 has 4 divisors (see below), whose sum is σ = 8295499308. Its totient is φ = 5530332864.

The previous prime is 6912916063. The next prime is 6912916111. The reversal of 6912916085 is 5806192196.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3666423601 + 3246492484 = 60551^2 + 56978^2 .

It is a cyclic number.

It is not a de Polignac number, because 6912916085 - 214 = 6912899701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 691291604 + ... + 691291613.

It is an arithmetic number, because the mean of its divisors is an integer number (2073874827).

Almost surely, 26912916085 is an apocalyptic number.

It is an amenable number.

6912916085 is a deficient number, since it is larger than the sum of its proper divisors (1382583223).

6912916085 is a wasteful number, since it uses less digits than its factorization.

6912916085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382583222.

The product of its (nonzero) digits is 233280, while the sum is 47.

The square root of 6912916085 is about 83143.9479757847. The cubic root of 6912916085 is about 1904.9654134066.

The spelling of 6912916085 in words is "six billion, nine hundred twelve million, nine hundred sixteen thousand, eighty-five".

Divisors: 1 5 1382583217 6912916085