Search a number
-
+
157783599267840 = 2143357136171181
BaseRepresentation
bin100011111000000011011011…
…011000101100000000000000
3202200122222001022200222211000
4203320003123120230000000
5131140111302403032330
61315324441305252000
745143326451664150
oct4370033330540000
9680588038628730
10157783599267840
11463027154164a7
1215843628194000
136a06c1134b060
142ad6aa4730760
1513394a816e560
hex8f80db62c000

157783599267840 has 3840 divisors, whose sum is σ = 715585479598080. Its totient is φ = 32105299968000.

The previous prime is 157783599267829. The next prime is 157783599267851. The reversal of 157783599267840 is 48762995387751.

157783599267840 is a `hidden beast` number, since 1 + 5 + 7 + 78 + 359 + 92 + 6 + 78 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (157783599267829) and next prime (157783599267851).

It is a tau number, because it is divible by the number of its divisors (3840).

It is a self number, because there is not a number n which added to its sum of digits gives 157783599267840.

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 255 ways as a sum of consecutive naturals, for example, 871732592550 + ... + 871732592730.

It is an arithmetic number, because the mean of its divisors is an integer number (186350385312).

It is a 1-persistent number, because it is pandigital, but 2⋅157783599267840 = 315567198535680 is not.

Almost surely, 2157783599267840 is an apocalyptic number.

157783599267840 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 157783599267840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357792739799040).

157783599267840 is an abundant number, since it is smaller than the sum of its proper divisors (557801880330240).

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

157783599267840 is a wasteful number, since it uses less digits than its factorization.

157783599267840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 6401203200, while the sum is 81.

The spelling of 157783599267840 in words is "one hundred fifty-seven trillion, seven hundred eighty-three billion, five hundred ninety-nine million, two hundred sixty-seven thousand, eight hundred forty".