Search a number
-
+
11872402856640 = 2633513123943889
BaseRepresentation
bin1010110011000100001001…
…0110101101101011000000
31120000222202011112121211000
42230301002112231223000
53024004140112403030
641130035004252000
72333516132130054
oct254610226555300
946028664477730
1011872402856640
11386806a999507
1213b8b4b841000
13681741594021
142d08ad6b7c64
15158c65ee9860
hexacc425adac0

11872402856640 has 448 divisors, whose sum is σ = 42380464896000. Its totient is φ = 3128589434880.

The previous prime is 11872402856603. The next prime is 11872402856651. The reversal of 11872402856640 is 4665820427811.

11872402856640 is a `hidden beast` number, since 1 + 1 + 8 + 72 + 4 + 0 + 2 + 8 + 566 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 270487816 + ... + 270531704.

It is an arithmetic number, because the mean of its divisors is an integer number (94599252000).

Almost surely, 211872402856640 is an apocalyptic number.

11872402856640 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 11872402856640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21190232448000).

11872402856640 is an abundant number, since it is smaller than the sum of its proper divisors (30508062039360).

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

11872402856640 is a wasteful number, since it uses less digits than its factorization.

11872402856640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44285 (or 44269 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 11872402856640 in words is "eleven trillion, eight hundred seventy-two billion, four hundred two million, eight hundred fifty-six thousand, six hundred forty".