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15113117 = 73207029
BaseRepresentation
bin111001101001…
…101110011101
31001102211022002
4321221232131
512332104432
61255532045
7242313365
oct71515635
931384262
1015113117
118592788
12508a025
133191c96
1420159a5
1514d7e62
hexe69b9d

15113117 has 4 divisors (see below), whose sum is σ = 15320220. Its totient is φ = 14906016.

The previous prime is 15113101. The next prime is 15113141. The reversal of 15113117 is 71131151.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13205956 + 1907161 = 3634^2 + 1381^2 .

It is not a de Polignac number, because 15113117 - 24 = 15113101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15113317) 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, 103442 + ... + 103587.

It is an arithmetic number, because the mean of its divisors is an integer number (3830055).

Almost surely, 215113117 is an apocalyptic number.

It is an amenable number.

15113117 is a deficient number, since it is larger than the sum of its proper divisors (207103).

15113117 is an equidigital number, since it uses as much as digits as its factorization.

15113117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207102.

The product of its digits is 105, while the sum is 20.

The square root of 15113117 is about 3887.5592599985. The cubic root of 15113117 is about 247.2395900623.

Adding to 15113117 its reverse (71131151), we get a palindrome (86244268).

The spelling of 15113117 in words is "fifteen million, one hundred thirteen thousand, one hundred seventeen".

Divisors: 1 73 207029 15113117