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115061081 = 883130307
BaseRepresentation
bin1101101101110…
…11000101011001
322000111201010112
412312323011121
5213423423311
615230054105
72565001022
oct666730531
9260451115
10115061081
1159a49103
123264a335
131aab7ba5
14113d1c49
15a17c28b
hex6dbb159

115061081 has 4 divisors (see below), whose sum is σ = 115192272. Its totient is φ = 114929892.

The previous prime is 115061071. The next prime is 115061101. The reversal of 115061081 is 180160511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 115061081 - 214 = 115044697 is a prime.

It is a super-2 number, since 2×1150610812 = 26478104721777122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115061041) 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, 64271 + ... + 66036.

It is an arithmetic number, because the mean of its divisors is an integer number (28798068).

Almost surely, 2115061081 is an apocalyptic number.

It is an amenable number.

115061081 is a deficient number, since it is larger than the sum of its proper divisors (131191).

115061081 is an equidigital number, since it uses as much as digits as its factorization.

115061081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131190.

The product of its (nonzero) digits is 240, while the sum is 23.

The square root of 115061081 is about 10726.6528330137. The cubic root of 115061081 is about 486.3804945347.

The spelling of 115061081 in words is "one hundred fifteen million, sixty-one thousand, eighty-one".

Divisors: 1 883 130307 115061081