Search a number
-
+
15033985 = 57341189
BaseRepresentation
bin111001010110…
…011010000001
31001021210202021
4321112122001
512322041420
61254121441
7241533601
oct71263201
931253667
1015033985
11853928a
125050281
133164c65
141dd4c01
1514be7aa
hexe56681

15033985 has 8 divisors (see below), whose sum is σ = 18288360. Its totient is φ = 11862144.

The previous prime is 15033971. The next prime is 15033989. The reversal of 15033985 is 58933051.

It can be written as a sum of positive squares in 4 ways, for example, as 10609 + 15023376 = 103^2 + 3876^2 .

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 15033985 - 211 = 15031937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15033985.

It is not an unprimeable number, because it can be changed into a prime (15033989) 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, 20230 + ... + 20959.

It is an arithmetic number, because the mean of its divisors is an integer number (2286045).

Almost surely, 215033985 is an apocalyptic number.

It is an amenable number.

15033985 is a deficient number, since it is larger than the sum of its proper divisors (3254375).

15033985 is an equidigital number, since it uses as much as digits as its factorization.

15033985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41267.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 15033985 is about 3877.3683085309. The cubic root of 15033985 is about 246.8073207631.

The spelling of 15033985 in words is "fifteen million, thirty-three thousand, nine hundred eighty-five".

Divisors: 1 5 73 365 41189 205945 3006797 15033985