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115213241 = 1113805687
BaseRepresentation
bin1101101111000…
…00001110111001
322000210102212002
412313200032321
5213443310431
615233230345
72566203443
oct667401671
9260712762
10115213241
115a042460
12327023b5
131ab3c220
1411431493
15a1ac3cb
hex6de03b9

115213241 has 8 divisors (see below), whose sum is σ = 135355584. Its totient is φ = 96682320.

The previous prime is 115213193. The next prime is 115213243. The reversal of 115213241 is 142312511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115213241 - 26 = 115213177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115213243) 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, 402701 + ... + 402986.

It is an arithmetic number, because the mean of its divisors is an integer number (16919448).

Almost surely, 2115213241 is an apocalyptic number.

115213241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

115213241 is a deficient number, since it is larger than the sum of its proper divisors (20142343).

115213241 is a wasteful number, since it uses less digits than its factorization.

115213241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805711.

The product of its digits is 240, while the sum is 20.

The square root of 115213241 is about 10733.7431029441. The cubic root of 115213241 is about 486.5948011624.

Adding to 115213241 its reverse (142312511), we get a palindrome (257525752).

The spelling of 115213241 in words is "one hundred fifteen million, two hundred thirteen thousand, two hundred forty-one".

Divisors: 1 11 13 143 805687 8862557 10473931 115213241