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11681508084 = 223973459007
BaseRepresentation
bin10101110000100010…
…11010101011110100
31010011002211002120120
422320101122223310
5142410431224314
65211051131540
7562323115611
oct127021325364
933132732516
1011681508084
114a549a7a14
122320143bb0
131142190b7c
147cb5d3508
1548580c8a9
hex2b845aaf4

11681508084 has 12 divisors (see below), whose sum is σ = 27256852224. Its totient is φ = 3893836024.

The previous prime is 11681508079. The next prime is 11681508101. The reversal of 11681508084 is 48080518611.

11681508084 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×116815080842 (a number of 21 digits) contains 22 as substring.

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, 486729492 + ... + 486729515.

It is an arithmetic number, because the mean of its divisors is an integer number (2271404352).

Almost surely, 211681508084 is an apocalyptic number.

It is an amenable number.

11681508084 is an abundant number, since it is smaller than the sum of its proper divisors (15575344140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11681508084 is a wasteful number, since it uses less digits than its factorization.

11681508084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973459014 (or 973459012 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 42.

The spelling of 11681508084 in words is "eleven billion, six hundred eighty-one million, five hundred eight thousand, eighty-four".

Divisors: 1 2 3 4 6 12 973459007 1946918014 2920377021 3893836028 5840754042 11681508084