Search a number
-
+
158808015780 = 2235191911933779
BaseRepresentation
bin1001001111100110110…
…0100000001110100100
3120011220121022002001020
42103321230200032210
510100214323001110
6200542210531140
714321260601361
oct2237154401644
9504817262036
10158808015780
1161393a91837
1226940596ab0
1311c8b320b0b
1479874ad468
1541e6ed6d70
hex24f9b203a4

158808015780 has 192 divisors, whose sum is σ = 473079398400. Its totient is φ = 39692574720.

The previous prime is 158808015701. The next prime is 158808015809. The reversal of 158808015780 is 87510808851.

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 63 ways as a sum of consecutive naturals, for example, 42021931 + ... + 42025709.

It is an arithmetic number, because the mean of its divisors is an integer number (2463955200).

Almost surely, 2158808015780 is an apocalyptic number.

158808015780 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 158808015780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236539699200).

158808015780 is an abundant number, since it is smaller than the sum of its proper divisors (314271382620).

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

158808015780 is a wasteful number, since it uses less digits than its factorization.

158808015780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4194 (or 4192 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 51.

The spelling of 158808015780 in words is "one hundred fifty-eight billion, eight hundred eight million, fifteen thousand, seven hundred eighty".