Search a number
-
+
52912720972800 = 210345213171959103
BaseRepresentation
bin11000000011111101100111…
…11100000000110000000000
320221100101222111112120110000
430001332303330000300000
523413410223032112200
6304311433552240000
714100550360245033
oct1401766374006000
9227311874476400
1052912720972800
1115950182614927
125b26a0b240000
13236a85707b490
14d0cdbcb3501a
1561b5abd51300
hex301fb3f00c00

52912720972800 has 5280 divisors, whose sum is σ = 241479369331200. Its totient is φ = 11305652060160.

The previous prime is 52912720972799. The next prime is 52912720972889. The reversal of 52912720972800 is 827902721925.

52912720972800 is a `hidden beast` number, since 5 + 2 + 9 + 1 + 272 + 0 + 97 + 280 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 513715737549 + ... + 513715737651.

It is an arithmetic number, because the mean of its divisors is an integer number (45734729040).

Almost surely, 252912720972800 is an apocalyptic number.

52912720972800 is a gapful number since it is divisible by the number (50) 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 52912720972800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120739684665600).

52912720972800 is an abundant number, since it is smaller than the sum of its proper divisors (188566648358400).

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

52912720972800 is a wasteful number, since it uses less digits than its factorization.

52912720972800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The spelling of 52912720972800 in words is "fifty-two trillion, nine hundred twelve billion, seven hundred twenty million, nine hundred seventy-two thousand, eight hundred".