Search a number
-
+
2131862298624 = 21333291272617
BaseRepresentation
bin11111000001011100111…
…001010010000000000000
321112210201011000200001000
4133001130321102000000
5234412023222023444
64311210343412000
7310010351356332
oct37013471220000
97483634020030
102131862298624
11752132765493
122a5204454000
131260591cc246
147527b40b452
153a6c45a3469
hex1f05ce52000

2131862298624 has 448 divisors, whose sum is σ = 6588010598400. Its totient is φ = 680453996544.

The previous prime is 2131862298593. The next prime is 2131862298649. The reversal of 2131862298624 is 4268922681312.

2131862298624 is a `hidden beast` number, since 2 + 1 + 3 + 1 + 8 + 6 + 2 + 2 + 9 + 8 + 624 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 814619364 + ... + 814621980.

It is an arithmetic number, because the mean of its divisors is an integer number (14705380800).

Almost surely, 22131862298624 is an apocalyptic number.

2131862298624 is a gapful number since it is divisible by the number (24) 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 2131862298624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3294005299200).

2131862298624 is an abundant number, since it is smaller than the sum of its proper divisors (4456148299776).

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

2131862298624 is a wasteful number, since it uses less digits than its factorization.

2131862298624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808 (or 2778 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The spelling of 2131862298624 in words is "two trillion, one hundred thirty-one billion, eight hundred sixty-two million, two hundred ninety-eight thousand, six hundred twenty-four".