Search a number
-
+
58380779520 = 21832572101
BaseRepresentation
bin110110010111110001…
…000000000000000000
312120200122201212211100
4312113301000000000
51424030434421040
642453022414400
74134505303200
oct662761000000
9176618655740
1058380779520
1122839478818
12b393731400
135675154a6b
142b7b7d8400
1517ba508b30
hexd97c40000

58380779520 has 684 divisors, whose sum is σ = 237759960204. Its totient is φ = 13212057600.

The previous prime is 58380779489. The next prime is 58380779557. The reversal of 58380779520 is 2597708385.

58380779520 is a `hidden beast` number, since 583 + 8 + 0 + 7 + 7 + 9 + 52 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 41733586944 + 16647192576 = 204288^2 + 129024^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 578027470 + ... + 578027570.

It is an arithmetic number, because the mean of its divisors is an integer number (347602281).

Almost surely, 258380779520 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 58380779520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118879980102).

58380779520 is an abundant number, since it is smaller than the sum of its proper divisors (179379180684).

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

58380779520 is an equidigital number, since it uses as much as digits as its factorization.

58380779520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

The spelling of 58380779520 in words is "fifty-eight billion, three hundred eighty million, seven hundred seventy-nine thousand, five hundred twenty".