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8013128833 = 46511722883
BaseRepresentation
bin1110111011001111…
…01010010010000001
3202200110010010021101
413131213222102001
5112402330110313
63403045054401
7402400320433
oct73547522201
922613103241
108013128833
113442225326
1216776b7401
139a918bb68
14560324653
1531d7405dd
hex1dd9ea481

8013128833 has 4 divisors (see below), whose sum is σ = 8014856368. Its totient is φ = 8011401300.

The previous prime is 8013128831. The next prime is 8013128873. The reversal of 8013128833 is 3388213108.

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 8013128833 - 21 = 8013128831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8013128792 and 8013128801.

It is not an unprimeable number, because it can be changed into a prime (8013128831) by changing a digit.

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, 856791 + ... + 866092.

It is an arithmetic number, because the mean of its divisors is an integer number (2003714092).

Almost surely, 28013128833 is an apocalyptic number.

It is an amenable number.

8013128833 is a deficient number, since it is larger than the sum of its proper divisors (1727535).

8013128833 is a wasteful number, since it uses less digits than its factorization.

8013128833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727534.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 8013128833 is about 89516.0814211614. The cubic root of 8013128833 is about 2001.0934714678.

The spelling of 8013128833 in words is "eight billion, thirteen million, one hundred twenty-eight thousand, eight hundred thirty-three".

Divisors: 1 4651 1722883 8013128833