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115104020 = 22523992
BaseRepresentation
bin1101101110001…
…01100100010100
322000120220000212
412313011210110
5213431312040
615231024552
72565240143
oct667054424
9260526025
10115104020
1159a78399
123266b158
131ab015b5
141140375a
15a189d65
hex6dc5914

115104020 has 18 divisors (see below), whose sum is σ = 241819242. Its totient is φ = 46022416.

The previous prime is 115104007. The next prime is 115104047. The reversal of 115104020 is 20401511.

It can be written as a sum of positive squares in only one way, i.e., 92083216 + 23020804 = 9596^2 + 4798^2 .

It is a junction number, because it is equal to n+sod(n) for n = 115103986 and 115104004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46781 + ... + 49179.

Almost surely, 2115104020 is an apocalyptic number.

115104020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115104020 is an abundant number, since it is smaller than the sum of its proper divisors (126715222).

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

115104020 is an frugal number, since it uses more digits than its factorization.

115104020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4807 (or 2406 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 115104020 is about 10728.6541560440. The cubic root of 115104020 is about 486.4409902137.

Adding to 115104020 its reverse (20401511), we get a palindrome (135505531).

The spelling of 115104020 in words is "one hundred fifteen million, one hundred four thousand, twenty".

Divisors: 1 2 4 5 10 20 2399 4798 9596 11995 23990 47980 5755201 11510402 23020804 28776005 57552010 115104020