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115028253 = 3212780917
BaseRepresentation
bin1101101101100…
…11000100011101
322000110001002200
412312303010131
5213421401003
615225242113
72564503224
oct666630435
9260401080
10115028253
1159a2647a
1232633339
131aaa5c72
14113c3cbb
15a1726a3
hex6db311d

115028253 has 6 divisors (see below), whose sum is σ = 166151934. Its totient is φ = 76685496.

The previous prime is 115028233. The next prime is 115028269. The reversal of 115028253 is 352820511.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 80946009 + 34082244 = 8997^2 + 5838^2 .

It is not a de Polignac number, because 115028253 - 210 = 115027229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115028203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6390450 + ... + 6390467.

It is an arithmetic number, because the mean of its divisors is an integer number (27691989).

Almost surely, 2115028253 is an apocalyptic number.

It is an amenable number.

115028253 is a deficient number, since it is larger than the sum of its proper divisors (51123681).

115028253 is a wasteful number, since it uses less digits than its factorization.

115028253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12780923 (or 12780920 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 115028253 is about 10725.1225167827. The cubic root of 115028253 is about 486.3342338371.

Adding to 115028253 its reverse (352820511), we get a palindrome (467848764).

It can be divided in two parts, 1150 and 28253, that added together give a triangular number (29403 = T242).

The spelling of 115028253 in words is "one hundred fifteen million, twenty-eight thousand, two hundred fifty-three".

Divisors: 1 3 9 12780917 38342751 115028253