Search a number
-
+
98090031888 = 243475686753
BaseRepresentation
bin101101101011010011…
…1110001101100010000
3100101012001200220120000
41123112213301230100
53101342022010023
6113021213450000
710041522341232
oct1332647615420
9311161626500
1098090031888
11386662a1862
12170161a0900
139332bc89b4
144a67520252
15284170d243
hex16d69f1b10

98090031888 has 50 divisors (see below), whose sum is σ = 283901014254. Its totient is φ = 32696676864.

The previous prime is 98090031881. The next prime is 98090031899. The reversal of 98090031888 is 88813009089.

It can be written as a sum of positive squares in only one way, i.e., 97801303824 + 288728064 = 312732^2 + 16992^2 .

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 (98090031881) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 37842081 + ... + 37844672.

Almost surely, 298090031888 is an apocalyptic number.

It is an amenable number.

98090031888 is an abundant number, since it is smaller than the sum of its proper divisors (185810982366).

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

98090031888 is a wasteful number, since it uses less digits than its factorization.

98090031888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75686773 (or 75686758 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 54.

The spelling of 98090031888 in words is "ninety-eight billion, ninety million, thirty-one thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 108 144 162 216 324 432 648 1296 75686753 151373506 227060259 302747012 454120518 605494024 681180777 908241036 1210988048 1362361554 1816482072 2043542331 2724723108 3632964144 4087084662 5449446216 6130626993 8174169324 10898892432 12261253986 16348338648 24522507972 32696677296 49045015944 98090031888