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115172 = 2228793
BaseRepresentation
bin11100000111100100
312211222122
4130013210
512141142
62245112
7656531
oct340744
9184878
10115172
1179592
1256798
1340565
142dd88
15241d2
hex1c1e4

115172 has 6 divisors (see below), whose sum is σ = 201558. Its totient is φ = 57584.

The previous prime is 115163. The next prime is 115183. The reversal of 115172 is 271511.

It can be written as a sum of positive squares in only one way, i.e., 87616 + 27556 = 296^2 + 166^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 115172.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14393 + ... + 14400.

It is an arithmetic number, because the mean of its divisors is an integer number (33593).

2115172 is an apocalyptic number.

It is an amenable number.

115172 is a deficient number, since it is larger than the sum of its proper divisors (86386).

115172 is a wasteful number, since it uses less digits than its factorization.

115172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28797 (or 28795 counting only the distinct ones).

The product of its digits is 70, while the sum is 17.

The square root of 115172 is about 339.3700045673. The cubic root of 115172 is about 48.6536734772.

Adding to 115172 its reverse (271511), we get a palindrome (386683).

The spelling of 115172 in words is "one hundred fifteen thousand, one hundred seventy-two".

Divisors: 1 2 4 28793 57586 115172