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115044213 = 338348071
BaseRepresentation
bin1101101101101…
…10111101110101
322000110211222210
412312312331311
5213422403323
615225444033
72564600604
oct666667565
9260424883
10115044213
1159a37469
1232640619
131aab02cb
14113c9a3b
15a177293
hex6db6f75

115044213 has 4 divisors (see below), whose sum is σ = 153392288. Its totient is φ = 76696140.

The previous prime is 115044197. The next prime is 115044233. The reversal of 115044213 is 312440511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 115044213 - 24 = 115044197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115044213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115044233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19174033 + ... + 19174038.

It is an arithmetic number, because the mean of its divisors is an integer number (38348072).

Almost surely, 2115044213 is an apocalyptic number.

It is an amenable number.

115044213 is a deficient number, since it is larger than the sum of its proper divisors (38348075).

115044213 is an equidigital number, since it uses as much as digits as its factorization.

115044213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38348074.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 115044213 is about 10725.8665384201. The cubic root of 115044213 is about 486.3567255155.

Adding to 115044213 its reverse (312440511), we get a palindrome (427484724).

The spelling of 115044213 in words is "one hundred fifteen million, forty-four thousand, two hundred thirteen".

Divisors: 1 3 38348071 115044213