Search a number
-
+
2812091157120 = 27357363757529
BaseRepresentation
bin101000111010111101101…
…100011100101010000000
3100221211111110122000100210
4220322331230130222000
5332033130314011440
65551505024514120
7410111145306030
oct50727554345200
910854443560323
102812091157120
11994668168913
1239500377b940
1317524351108b
149a16a9a18c0
154d237a49a80
hex28ebdb1ca80

2812091157120 has 256 divisors, whose sum is σ = 10247041094400. Its totient is φ = 642575794176.

The previous prime is 2812091157103. The next prime is 2812091157149. The reversal of 2812091157120 is 217511902182.

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, 48852516 + ... + 48910044.

It is an arithmetic number, because the mean of its divisors is an integer number (40027504275).

Almost surely, 22812091157120 is an apocalyptic number.

2812091157120 is a gapful number since it is divisible by the number (20) 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 2812091157120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5123520547200).

2812091157120 is an abundant number, since it is smaller than the sum of its proper divisors (7434949937280).

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

2812091157120 is a wasteful number, since it uses less digits than its factorization.

2812091157120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61195 (or 61183 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 39.

The spelling of 2812091157120 in words is "two trillion, eight hundred twelve billion, ninety-one million, one hundred fifty-seven thousand, one hundred twenty".