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28089098082 = 23323101223921
BaseRepresentation
bin11010001010001111…
…011001111101100010
32200111120121000202000
4122022033121331202
5430011302114312
620523130504430
72013034252143
oct321217317542
980446530660
1028089098082
1110a04622151
12553ab95116
1328585152c6
141506743aca
15ae5eb5adc
hex68a3d9f62

28089098082 has 64 divisors (see below), whose sum is σ = 65779326720. Its totient is φ = 8867232000.

The previous prime is 28089098071. The next prime is 28089098083.

28089098082 is nontrivially palindromic in base 10.

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 (28089098083) 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 31 ways as a sum of consecutive naturals, for example, 13482 + ... + 237402.

It is an arithmetic number, because the mean of its divisors is an integer number (1027801980).

Almost surely, 228089098082 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28089098082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32889663360).

28089098082 is an abundant number, since it is smaller than the sum of its proper divisors (37690228638).

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

28089098082 is a wasteful number, since it uses less digits than its factorization.

28089098082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224056 (or 224050 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 54.

The spelling of 28089098082 in words is "twenty-eight billion, eighty-nine million, ninety-eight thousand, eighty-two".

Divisors: 1 2 3 6 9 18 23 27 46 54 69 101 138 202 207 303 414 606 621 909 1242 1818 2323 2727 4646 5454 6969 13938 20907 41814 62721 125442 223921 447842 671763 1343526 2015289 4030578 5150183 6045867 10300366 12091734 15450549 22616021 30901098 45232042 46351647 67848063 92703294 135696126 139054941 203544189 278109882 407088378 520168483 610632567 1040336966 1221265134 1560505449 3121010898 4681516347 9363032694 14044549041 28089098082