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115287053 = 722352797
BaseRepresentation
bin1101101111100…
…10010000001101
322000221012002212
412313302100031
5214003141203
615235000205
72566631600
oct667622015
9260835085
10115287053
115a092962
1232739065
131ab669bb
1411450337
15a1c41d8
hex6df240d

115287053 has 6 divisors (see below), whose sum is σ = 134109486. Its totient is φ = 98817432.

The previous prime is 115287037. The next prime is 115287071. The reversal of 115287053 is 350782511.

It can be written as a sum of positive squares in only one way, i.e., 114854089 + 432964 = 10717^2 + 658^2 .

It is not a de Polignac number, because 115287053 - 24 = 115287037 is a prime.

It is a super-2 number, since 2×1152870532 = 26582209178849618, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115287253) 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, 1176350 + ... + 1176447.

It is an arithmetic number, because the mean of its divisors is an integer number (22351581).

Almost surely, 2115287053 is an apocalyptic number.

It is an amenable number.

115287053 is a deficient number, since it is larger than the sum of its proper divisors (18822433).

115287053 is an equidigital number, since it uses as much as digits as its factorization.

115287053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352811 (or 2352804 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 115287053 is about 10737.1808683658. The cubic root of 115287053 is about 486.6986921962.

It can be divided in two parts, 11528 and 7053, that added together give a palindrome (18581).

The spelling of 115287053 in words is "one hundred fifteen million, two hundred eighty-seven thousand, fifty-three".

Divisors: 1 7 49 2352797 16469579 115287053