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6457048081 = 113715864983
BaseRepresentation
bin1100000001101111…
…01011110000010001
3121200000002000202221
412000313223300101
5101211001014311
62544420541041
7316004001031
oct60067536021
917600060687
106457048081
112813920880
121302551781
137bb992813
144537c38c1
1527bd19671
hex180debc11

6457048081 has 8 divisors (see below), whose sum is σ = 7234432704. Its totient is φ = 5711393520.

The previous prime is 6457048079. The next prime is 6457048093. The reversal of 6457048081 is 1808407546.

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

It is a cyclic number.

It is not a de Polignac number, because 6457048081 - 21 = 6457048079 is a prime.

It is a super-2 number, since 2×64570480812 = 83386939840691565122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6457048051) 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, 7932085 + ... + 7932898.

It is an arithmetic number, because the mean of its divisors is an integer number (904304088).

Almost surely, 26457048081 is an apocalyptic number.

It is an amenable number.

6457048081 is a deficient number, since it is larger than the sum of its proper divisors (777384623).

6457048081 is a wasteful number, since it uses less digits than its factorization.

6457048081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15865031.

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 6457048081 is about 80355.7594762193. The cubic root of 6457048081 is about 1862.1357592658.

The spelling of 6457048081 in words is "six billion, four hundred fifty-seven million, forty-eight thousand, eighty-one".

Divisors: 1 11 37 407 15864983 174514813 587004371 6457048081