Search a number
-
+
2288135640960 = 273451314922787
BaseRepresentation
bin100001010010111111100…
…000110001011110000000
322002202002002212222210000
4201102333200301132000
5244442100211002320
64511053251440000
7324212064020361
oct41227740613600
98082062788700
102288135640960
11802435a10584
1230b557bb6000
13137a02370690
147ca64001b68
153e7bdcb0c90
hex214bf831780

2288135640960 has 640 divisors, whose sum is σ = 8859359124000. Its totient is φ = 559428747264.

The previous prime is 2288135640911. The next prime is 2288135640961. The reversal of 2288135640960 is 690465318822.

2288135640960 is a `hidden beast` number, since 2 + 2 + 8 + 8 + 13 + 564 + 0 + 9 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

It is a super-2 number, since 2×22881356409602 (a number of 26 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 2288135640897 and 2288135640906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2288135640961) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 100402687 + ... + 100425473.

Almost surely, 22288135640960 is an apocalyptic number.

2288135640960 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 2288135640960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4429679562000).

2288135640960 is an abundant number, since it is smaller than the sum of its proper divisors (6571223483040).

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

2288135640960 is a wasteful number, since it uses less digits than its factorization.

2288135640960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22980 (or 22959 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 2288135640960 in words is "two trillion, two hundred eighty-eight billion, one hundred thirty-five million, six hundred forty thousand, nine hundred sixty".