Search a number
-
+
15056215200 = 2534521361293
BaseRepresentation
bin11100000010110101…
…11001110010100000
31102212021220222110000
432001122321302200
5221313342341300
610530002540000
71042051501065
oct160132716240
942767828400
1015056215200
116426928364
122b02367600
13155c39c3a0
14a2b898c6c
155d1c1ac00
hex3816b9ca0

15056215200 has 720 divisors, whose sum is σ = 60305187096. Its totient is φ = 3632947200.

The previous prime is 15056215193. The next prime is 15056215231. The reversal of 15056215200 is 251265051.

15056215200 is a `hidden beast` number, since 1 + 50 + 562 + 1 + 52 + 0 + 0 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 12702096 + 15043513104 = 3564^2 + 122652^2 .

It is a tau number, because it is divible by the number of its divisors (720).

It is a super-2 number, since 2×150562152002 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 51386254 + ... + 51386546.

Almost surely, 215056215200 is an apocalyptic number.

15056215200 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 15056215200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30152593548).

15056215200 is an abundant number, since it is smaller than the sum of its proper divisors (45248971896).

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

15056215200 is a wasteful number, since it uses less digits than its factorization.

15056215200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The spelling of 15056215200 in words is "fifteen billion, fifty-six million, two hundred fifteen thousand, two hundred".