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7081922913 = 313181587767
BaseRepresentation
bin1101001100001110…
…11001000101100001
3200021112212221220020
412212013121011201
5104000433013123
63130422104053
7340332231402
oct64607310541
920245787806
107081922913
11300461955a
12145787b029
1388b28a640
144b27a39a9
152b6aec7e3
hex1a61d9161

7081922913 has 8 divisors (see below), whose sum is σ = 10168915008. Its totient is φ = 4358106384.

The previous prime is 7081922909. The next prime is 7081922921. The reversal of 7081922913 is 3192291807.

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

It is not a de Polignac number, because 7081922913 - 22 = 7081922909 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7081922413) 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, 90793845 + ... + 90793922.

It is an arithmetic number, because the mean of its divisors is an integer number (1271114376).

Almost surely, 27081922913 is an apocalyptic number.

It is an amenable number.

7081922913 is a deficient number, since it is larger than the sum of its proper divisors (3086992095).

7081922913 is a wasteful number, since it uses less digits than its factorization.

7081922913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181587783.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 7081922913 is about 84154.1615905001. The cubic root of 7081922913 is about 1920.3647774261.

The spelling of 7081922913 in words is "seven billion, eighty-one million, nine hundred twenty-two thousand, nine hundred thirteen".

Divisors: 1 3 13 39 181587767 544763301 2360640971 7081922913