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28330316100 = 22325231478129
BaseRepresentation
bin11010011000100111…
…100101000101000100
32201010101111011122200
4122120213211011010
5431010030103400
621003104554500
72022023466522
oct323047450504
981111434580
1028330316100
11110187a7889
1255a7922a30
1328964a1668
14152a7b5312
15b0c262b00
hex6989e5144

28330316100 has 54 divisors (see below), whose sum is σ = 88799804730. Its totient is φ = 7554750720.

The previous prime is 28330316093. The next prime is 28330316107. The reversal of 28330316100 is 161303382.

It is a happy number.

28330316100 is a `hidden beast` number, since 2 + 8 + 330 + 316 + 10 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (28330316093) and next prime (28330316107).

It can be written as a sum of positive squares in 3 ways, for example, as 219099204 + 28111216896 = 14802^2 + 167664^2 .

It is not an unprimeable number, because it can be changed into a prime (28330316107) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 15738165 + ... + 15739964.

Almost surely, 228330316100 is an apocalyptic number.

28330316100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28330316100 is an abundant number, since it is smaller than the sum of its proper divisors (60469488630).

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

28330316100 is a wasteful number, since it uses less digits than its factorization.

28330316100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31478149 (or 31478139 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 28330316100 its reverse (161303382), we get a palindrome (28491619482).

The spelling of 28330316100 in words is "twenty-eight billion, three hundred thirty million, three hundred sixteen thousand, one hundred".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 25 30 36 45 50 60 75 90 100 150 180 225 300 450 900 31478129 62956258 94434387 125912516 157390645 188868774 283303161 314781290 377737548 472171935 566606322 629562580 786953225 944343870 1133212644 1416515805 1573906450 1888687740 2360859675 2833031610 3147812900 4721719350 5666063220 7082579025 9443438700 14165158050 28330316100