Search a number
-
+
2015704362240 = 28375720059
BaseRepresentation
bin11101010101010001010…
…101111010110100000000
321010200212220101010000000
4131111101111322310000
5231011130304042430
64142000220000000
7265426014244512
oct35252125726400
97120786333000
102015704362240
11707945621658
122867a7390000
13118106cb91ca
146d7bc465bb2
1537676a76e60
hex1d55157ad00

2015704362240 has 288 divisors, whose sum is σ = 7241268988800. Its totient is φ = 537520416768.

The previous prime is 2015704362071. The next prime is 2015704362241. The reversal of 2015704362240 is 422634075102.

2015704362240 is a `hidden beast` number, since 2 + 0 + 1 + 57 + 0 + 4 + 362 + 240 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2015704362195 and 2015704362204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015704362241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2439331 + ... + 3159389.

It is an arithmetic number, because the mean of its divisors is an integer number (25143295100).

Almost surely, 22015704362240 is an apocalyptic number.

2015704362240 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 2015704362240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3620634494400).

2015704362240 is an abundant number, since it is smaller than the sum of its proper divisors (5225564626560).

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

2015704362240 is an frugal number, since it uses more digits than its factorization.

2015704362240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720101 (or 720069 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 2015704362240 in words is "two trillion, fifteen billion, seven hundred four million, three hundred sixty-two thousand, two hundred forty".