Search a number
-
+
252775987200 = 2113552111847
BaseRepresentation
bin1110101101101010011…
…1110111100000000000
3220011110101121121200000
43223122213313200000
513120141123042300
6312042414400000
724156011303622
oct3533247674000
9804411547600
10252775987200
1198224500550
1240ba6200000
131aab522c379
14c33d384c12
1568968adc00
hex3ada9f7800

252775987200 has 864 divisors, whose sum is σ = 1024708164480. Its totient is φ = 61245849600.

The previous prime is 252775987183. The next prime is 252775987229. The reversal of 252775987200 is 2789577252.

252775987200 is a `hidden beast` number, since 2 + 5 + 27 + 7 + 598 + 7 + 20 + 0 = 666.

252775987200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (864).

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

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 136856677 + ... + 136858523.

It is an arithmetic number, because the mean of its divisors is an integer number (1186004820).

Almost surely, 2252775987200 is an apocalyptic number.

252775987200 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 252775987200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (512354082240).

252775987200 is an abundant number, since it is smaller than the sum of its proper divisors (771932177280).

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

252775987200 is a wasteful number, since it uses less digits than its factorization.

252775987200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905 (or 1868 counting only the distinct ones).

The product of its (nonzero) digits is 4939200, while the sum is 54.

The spelling of 252775987200 in words is "two hundred fifty-two billion, seven hundred seventy-five million, nine hundred eighty-seven thousand, two hundred".