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115212241 = 127907183
BaseRepresentation
bin1101101110111…
…11111111010001
322000210101111001
412313133333101
5213443242431
615233222001
72566200514
oct667377721
9260711431
10115212241
115a041731
1232701901
131ab3b931
1411430d7b
15a1abe61
hex6ddffd1

115212241 has 4 divisors (see below), whose sum is σ = 116119552. Its totient is φ = 114304932.

The previous prime is 115212233. The next prime is 115212269. The reversal of 115212241 is 142212511.

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 115212241 - 23 = 115212233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115212271) 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, 453465 + ... + 453718.

It is an arithmetic number, because the mean of its divisors is an integer number (29029888).

Almost surely, 2115212241 is an apocalyptic number.

It is an amenable number.

115212241 is a deficient number, since it is larger than the sum of its proper divisors (907311).

115212241 is an equidigital number, since it uses as much as digits as its factorization.

115212241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907310.

The product of its digits is 160, while the sum is 19.

The square root of 115212241 is about 10733.6965207705. The cubic root of 115212241 is about 486.5933933490.

Adding to 115212241 its reverse (142212511), we get a palindrome (257424752).

The spelling of 115212241 in words is "one hundred fifteen million, two hundred twelve thousand, two hundred forty-one".

Divisors: 1 127 907183 115212241