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15000133 = 37210957
BaseRepresentation
bin111001001110…
…001001000101
31001020002022111
4321032021011
512320001013
61253301021
7241333111
oct71161105
931202274
1015000133
118515905
125034771
133152725
141dc6741
1514b473d
hexe4e245

15000133 has 6 divisors (see below), whose sum is σ = 15417906. Its totient is φ = 14593392.

The previous prime is 15000131. The next prime is 15000151. The reversal of 15000133 is 33100051.

It can be written as a sum of positive squares in 3 ways, for example, as 9345249 + 5654884 = 3057^2 + 2378^2 .

It is not a de Polignac number, because 15000133 - 21 = 15000131 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 (15000131) 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 5 ways as a sum of consecutive naturals, for example, 4110 + ... + 6847.

It is an arithmetic number, because the mean of its divisors is an integer number (2569651).

Almost surely, 215000133 is an apocalyptic number.

It is an amenable number.

15000133 is a deficient number, since it is larger than the sum of its proper divisors (417773).

15000133 is an equidigital number, since it uses as much as digits as its factorization.

15000133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11031 (or 10994 counting only the distinct ones).

The product of its (nonzero) digits is 45, while the sum is 13.

The square root of 15000133 is about 3873.0005163955. Note that the first 3 decimals coincide. The cubic root of 15000133 is about 246.6219363336.

Adding to 15000133 its reverse (33100051), we get a palindrome (48100184).

The spelling of 15000133 in words is "fifteen million, one hundred thirty-three", and thus it is an aban number.

Divisors: 1 37 1369 10957 405409 15000133