Search a number
-
+
11860994880 = 263257312007
BaseRepresentation
bin10110000101111100…
…00110101101000000
31010121121112222011200
423002332012231000
5143242403314010
65240542141200
7566632536000
oct130276065500
933547488150
1011860994880
11503724a009
122370281800
131170415287
14807396000
15496463cc0
hex2c2f86b40

11860994880 has 336 divisors, whose sum is σ = 47580499200. Its totient is φ = 2710858752.

The previous prime is 11860994869. The next prime is 11860994927. The reversal of 11860994880 is 8849906811.

11860994880 is a `hidden beast` number, since 1 + 18 + 60 + 99 + 488 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 981837 + ... + 993843.

Almost surely, 211860994880 is an apocalyptic number.

11860994880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11860994880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23790249600).

11860994880 is an abundant number, since it is smaller than the sum of its proper divisors (35719504320).

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

11860994880 is a wasteful number, since it uses less digits than its factorization.

11860994880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12051 (or 12024 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 54.

The spelling of 11860994880 in words is "eleven billion, eight hundred sixty million, nine hundred ninety-four thousand, eight hundred eighty".