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115229 = 611889
BaseRepresentation
bin11100001000011101
312212001202
4130020131
512141404
62245245
7656642
oct341035
9185052
10115229
1179634
1256825
13405aa
142ddc9
152421e
hex1c21d

115229 has 4 divisors (see below), whose sum is σ = 117180. Its totient is φ = 113280.

The previous prime is 115223. The next prime is 115237. The reversal of 115229 is 922511.

It can be divided in two parts, 115 and 229, that multiplied together give a triangular number (26335 = T229).

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24025 + 91204 = 155^2 + 302^2 .

It is a cyclic number.

It is not a de Polignac number, because 115229 - 28 = 114973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115223) 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, 884 + ... + 1005.

It is an arithmetic number, because the mean of its divisors is an integer number (29295).

2115229 is an apocalyptic number.

It is an amenable number.

115229 is a deficient number, since it is larger than the sum of its proper divisors (1951).

115229 is an equidigital number, since it uses as much as digits as its factorization.

115229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950.

The product of its digits is 180, while the sum is 20.

The square root of 115229 is about 339.4539733160. The cubic root of 115229 is about 48.6616985817.

The spelling of 115229 in words is "one hundred fifteen thousand, two hundred twenty-nine".

Divisors: 1 61 1889 115229