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53851402080 = 25325719317887
BaseRepresentation
bin110010001001110010…
…110010111101100000
312010222222220200001100
4302021302302331200
51340241424331310
640423342234400
73614326236150
oct621162627540
9163888820040
1053851402080
1120924792483
12a52a885a00
135102963778
14286c042760
151602a65ec0
hexc89cb2f60

53851402080 has 576 divisors, whose sum is σ = 222021596160. Its totient is φ = 11611164672.

The previous prime is 53851402067. The next prime is 53851402103. The reversal of 53851402080 is 8020415835.

It is a happy number.

53851402080 is a `hidden beast` number, since 538 + 5 + 1 + 40 + 2 + 0 + 80 = 666.

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

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 60711397 + ... + 60712283.

It is an arithmetic number, because the mean of its divisors is an integer number (385454160).

Almost surely, 253851402080 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 53851402080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111010798080).

53851402080 is an abundant number, since it is smaller than the sum of its proper divisors (168170194080).

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

53851402080 is a wasteful number, since it uses less digits than its factorization.

53851402080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251 (or 1240 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The spelling of 53851402080 in words is "fifty-three billion, eight hundred fifty-one million, four hundred two thousand, eighty".