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115331130 = 23251281457
BaseRepresentation
bin1101101111111…
…01000000111010
322001000102120100
412313331000322
5214011044010
615235540230
72600204235
oct667750072
9261012510
10115331130
115a112a92
123275a676
131ab80a95
141146241c
15a1d22c0
hex6dfd03a

115331130 has 24 divisors (see below), whose sum is σ = 299861172. Its totient is φ = 30754944.

The previous prime is 115331093. The next prime is 115331143. The reversal of 115331130 is 31133511.

115331130 is a `hidden beast` number, since 1 + 1 + 533 + 1 + 130 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 115283169 + 47961 = 10737^2 + 219^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 640639 + ... + 640818.

Almost surely, 2115331130 is an apocalyptic number.

115331130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115331130 is an abundant number, since it is smaller than the sum of its proper divisors (184530042).

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

115331130 is a wasteful number, since it uses less digits than its factorization.

115331130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281470 (or 1281467 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 18.

The square root of 115331130 is about 10739.2332128509. The cubic root of 115331130 is about 486.7607098133.

Adding to 115331130 its reverse (31133511), we get a palindrome (146464641).

The spelling of 115331130 in words is "one hundred fifteen million, three hundred thirty-one thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1281457 2562914 3844371 6407285 7688742 11533113 12814570 19221855 23066226 38443710 57665565 115331130