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15000113 = 53733877
BaseRepresentation
bin111001001110…
…001000110001
31001020002021202
4321032020301
512320000423
61253300545
7241333052
oct71161061
931202252
1015000113
118515897
125034755
13315270b
141dc6729
1514b4728
hexe4e231

15000113 has 8 divisors (see below), whose sum is σ = 15496488. Its totient is φ = 14511744.

The previous prime is 15000079. The next prime is 15000127. The reversal of 15000113 is 31100051.

It can be written as a sum of positive squares in 4 ways, for example, as 2411809 + 12588304 = 1553^2 + 3548^2 .

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 15000113 - 28 = 14999857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15000094 and 15000103.

It is not an unprimeable number, because it can be changed into a prime (15000173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1931 + ... + 5807.

It is an arithmetic number, because the mean of its divisors is an integer number (1937061).

Almost surely, 215000113 is an apocalyptic number.

It is an amenable number.

15000113 is a deficient number, since it is larger than the sum of its proper divisors (496375).

15000113 is an equidigital number, since it uses as much as digits as its factorization.

15000113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4003.

The product of its (nonzero) digits is 15, while the sum is 11.

The square root of 15000113 is about 3872.9979344172. The cubic root of 15000113 is about 246.6218267247.

Adding to 15000113 its reverse (31100051), we get a palindrome (46100164).

The spelling of 15000113 in words is "fifteen million, one hundred thirteen", and thus it is an aban number.

Divisors: 1 53 73 3869 3877 205481 283021 15000113