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115202243 = 138861711
BaseRepresentation
bin1101101110111…
…01100011000011
322000202212202202
412313131203003
5213442432433
615233103415
72566126412
oct667354303
9260685682
10115202243
115a035172
12326b7b6b
131ab37210
141142b479
15a1a8ee8
hex6ddd8c3

115202243 has 4 divisors (see below), whose sum is σ = 124063968. Its totient is φ = 106340520.

The previous prime is 115202237. The next prime is 115202267. The reversal of 115202243 is 342202511.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 115202243 - 26 = 115202179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115202543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4430843 + ... + 4430868.

It is an arithmetic number, because the mean of its divisors is an integer number (31015992).

Almost surely, 2115202243 is an apocalyptic number.

115202243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

115202243 is a deficient number, since it is larger than the sum of its proper divisors (8861725).

115202243 is an equidigital number, since it uses as much as digits as its factorization.

115202243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8861724.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 115202243 is about 10733.2307810836. The cubic root of 115202243 is about 486.5793175835.

Adding to 115202243 its reverse (342202511), we get a palindrome (457404754).

The spelling of 115202243 in words is "one hundred fifteen million, two hundred two thousand, two hundred forty-three".

Divisors: 1 13 8861711 115202243