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115266980 = 2255763349
BaseRepresentation
bin1101101111011…
…01010110100100
322000220011120102
412313231112210
5214002020410
615234323232
72566516223
oct667552644
9260804512
10115266980
115a079874
1232729518
131ab5a81a
1411446cba
15a1bd2a5
hex6ded5a4

115266980 has 12 divisors (see below), whose sum is σ = 242060700. Its totient is φ = 46106784.

The previous prime is 115266973. The next prime is 115266989. The reversal of 115266980 is 89662511.

It can be written as a sum of positive squares in 2 ways, for example, as 24522304 + 90744676 = 4952^2 + 9526^2 .

It is not an unprimeable number, because it can be changed into a prime (115266989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2881655 + ... + 2881694.

It is an arithmetic number, because the mean of its divisors is an integer number (20171725).

Almost surely, 2115266980 is an apocalyptic number.

115266980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115266980 is an abundant number, since it is smaller than the sum of its proper divisors (126793720).

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

115266980 is a wasteful number, since it uses less digits than its factorization.

115266980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5763358 (or 5763356 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 115266980 is about 10736.2460851081. The cubic root of 115266980 is about 486.6704436645.

The spelling of 115266980 in words is "one hundred fifteen million, two hundred sixty-six thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 5763349 11526698 23053396 28816745 57633490 115266980