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8081113533 = 36481415631
BaseRepresentation
bin1111000011010110…
…00000000110111101
3202212012001002202020
413201223000012331
5113022231113113
63413514150353
7404154221523
oct74153000675
922765032666
108081113533
11347763a229
1216964223b9
139ba2a32ac
14569380313
153246be023
hex1e1ac01bd

8081113533 has 8 divisors (see below), whose sum is σ = 10776506496. Its totient is φ = 5386564800.

The previous prime is 8081113529. The next prime is 8081113543. The reversal of 8081113533 is 3353111808.

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

It is not a de Polignac number, because 8081113533 - 22 = 8081113529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8081113494 and 8081113503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8081113543) 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, 188373 + ... + 227258.

It is an arithmetic number, because the mean of its divisors is an integer number (1347063312).

Almost surely, 28081113533 is an apocalyptic number.

It is an amenable number.

8081113533 is a deficient number, since it is larger than the sum of its proper divisors (2695392963).

8081113533 is a wasteful number, since it uses less digits than its factorization.

8081113533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422115.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 8081113533 is about 89895.0139496068. The cubic root of 8081113533 is about 2006.7367437470.

The spelling of 8081113533 in words is "eight billion, eighty-one million, one hundred thirteen thousand, five hundred thirty-three".

Divisors: 1 3 6481 19443 415631 1246893 2693704511 8081113533