Search a number
-
+
50618299680 = 25355131743137
BaseRepresentation
bin101111001001000101…
…011111010100100000
311211122200021001100000
4233021011133110200
51312131241042210
635130445500000
73441240306504
oct571105372440
9154580231300
1050618299680
111a51578a823
129987b71600
134a08ba4b20
1426428bc304
1514b3cc9ac0
hexbc915f520

50618299680 has 1152 divisors, whose sum is σ = 210535573248. Its totient is φ = 11370627072.

The previous prime is 50618299679. The next prime is 50618299681. The reversal of 50618299680 is 8699281605.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (50618299679) and next prime (50618299681).

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

It is not an unprimeable number, because it can be changed into a prime (50618299681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 369476572 + ... + 369476708.

It is an arithmetic number, because the mean of its divisors is an integer number (182756574).

Almost surely, 250618299680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50618299680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105267786624).

50618299680 is an abundant number, since it is smaller than the sum of its proper divisors (159917273568).

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

50618299680 is a wasteful number, since it uses less digits than its factorization.

50618299680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The spelling of 50618299680 in words is "fifty billion, six hundred eighteen million, two hundred ninety-nine thousand, six hundred eighty".