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115000 = 235423
BaseRepresentation
bin11100000100111000
312211202021
4130010320
512140000
62244224
7656164
oct340470
9184667
10115000
1179446
1256674
1340462
142dca4
152411a
hex1c138

115000 has 40 divisors (see below), whose sum is σ = 281160. Its totient is φ = 44000.

The previous prime is 114997. The next prime is 115001. The reversal of 115000 is 511.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4989 + ... + 5011.

It is an arithmetic number, because the mean of its divisors is an integer number (7029).

2115000 is an apocalyptic number.

115000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140580).

115000 is an abundant number, since it is smaller than the sum of its proper divisors (166160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115000 is an equidigital number, since it uses as much as digits as its factorization.

115000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 5, while the sum is 7.

The square root of 115000 is about 339.1164991563. The cubic root of 115000 is about 48.6294413109.

Adding to 115000 its reverse (511), we get a palindrome (115511).

The spelling of 115000 in words is "one hundred fifteen thousand".

Divisors: 1 2 4 5 8 10 20 23 25 40 46 50 92 100 115 125 184 200 230 250 460 500 575 625 920 1000 1150 1250 2300 2500 2875 4600 5000 5750 11500 14375 23000 28750 57500 115000