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115332121 = 313720391
BaseRepresentation
bin1101101111111…
…01010000011001
322001000110221001
412313331100121
5214011111441
615235545001
72600210152
oct667752031
9261013831
10115332121
115a113803
123275b161
131ab81378
1411462929
15a1d2731
hex6dfd419

115332121 has 4 divisors (see below), whose sum is σ = 119052544. Its totient is φ = 111611700.

The previous prime is 115332089. The next prime is 115332157. The reversal of 115332121 is 121233511.

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 115332121 - 25 = 115332089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115332421) 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, 1860165 + ... + 1860226.

It is an arithmetic number, because the mean of its divisors is an integer number (29763136).

Almost surely, 2115332121 is an apocalyptic number.

It is an amenable number.

115332121 is a deficient number, since it is larger than the sum of its proper divisors (3720423).

115332121 is an equidigital number, since it uses as much as digits as its factorization.

115332121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720422.

The product of its digits is 180, while the sum is 19.

The square root of 115332121 is about 10739.2793519863. The cubic root of 115332121 is about 486.7621039974.

Adding to 115332121 its reverse (121233511), we get a palindrome (236565632).

The spelling of 115332121 in words is "one hundred fifteen million, three hundred thirty-two thousand, one hundred twenty-one".

Divisors: 1 31 3720391 115332121