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115338239 = 330734877
BaseRepresentation
bin1101101111111…
…10101111111111
322001000210022122
412313332233333
5214011310424
615240033155
72600234042
oct667765777
9261023278
10115338239
115a118365
12327627bb
131ab840a3
1411464c59
15a1d445e
hex6dfebff

115338239 has 4 divisors (see below), whose sum is σ = 115376424. Its totient is φ = 115300056.

The previous prime is 115338233. The next prime is 115338253. The reversal of 115338239 is 932833511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 932833511 = 3767247633.

It is a cyclic number.

It is not a de Polignac number, because 115338239 - 220 = 114289663 is a prime.

It is a super-2 number, since 2×1153382392 = 26605818751242242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115338199 and 115338208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115338233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14132 + ... + 20745.

It is an arithmetic number, because the mean of its divisors is an integer number (28844106).

Almost surely, 2115338239 is an apocalyptic number.

115338239 is a deficient number, since it is larger than the sum of its proper divisors (38185).

115338239 is an equidigital number, since it uses as much as digits as its factorization.

115338239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38184.

The product of its digits is 19440, while the sum is 35.

The square root of 115338239 is about 10739.5641904129. The cubic root of 115338239 is about 486.7707109026.

The spelling of 115338239 in words is "one hundred fifteen million, three hundred thirty-eight thousand, two hundred thirty-nine".

Divisors: 1 3307 34877 115338239