Search a number
-
+
115445230 = 2529398087
BaseRepresentation
bin1101110000110…
…00110111101110
322001020020002021
412320120313232
5214023221410
615242220354
72601161005
oct670306756
9261206067
10115445230
115a19078a
12327b46ba
131abc09b4
1411491c3c
15a205eda
hex6e18dee

115445230 has 16 divisors (see below), whose sum is σ = 214967520. Its totient is φ = 44585632.

The previous prime is 115445203. The next prime is 115445233. The reversal of 115445230 is 32544511.

It is a happy number.

It is a super-3 number, since 3×1154452303 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 115445195 and 115445204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115445233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198754 + ... + 199333.

It is an arithmetic number, because the mean of its divisors is an integer number (13435470).

Almost surely, 2115445230 is an apocalyptic number.

115445230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115445230 is a deficient number, since it is larger than the sum of its proper divisors (99522290).

115445230 is a wasteful number, since it uses less digits than its factorization.

115445230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398123.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 115445230 is about 10744.5441969401. The cubic root of 115445230 is about 486.9211784614.

Adding to 115445230 its reverse (32544511), we get a palindrome (147989741).

The spelling of 115445230 in words is "one hundred fifteen million, four hundred forty-five thousand, two hundred thirty".

Divisors: 1 2 5 10 29 58 145 290 398087 796174 1990435 3980870 11544523 23089046 57722615 115445230