Search a number
-
+
15242053 = 47324299
BaseRepresentation
bin111010001001…
…001101000101
31001200101011111
4322021031011
512400221203
61302405021
7243361321
oct72111505
931611144
1015242053
118670642
125130771
133208888
14204a981
15151126d
hexe89345

15242053 has 4 divisors (see below), whose sum is σ = 15566400. Its totient is φ = 14917708.

The previous prime is 15242041. The next prime is 15242083. The reversal of 15242053 is 35024251.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-15242053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15242083) 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 3 ways as a sum of consecutive naturals, for example, 162103 + ... + 162196.

It is an arithmetic number, because the mean of its divisors is an integer number (3891600).

Almost surely, 215242053 is an apocalyptic number.

It is an amenable number.

15242053 is a deficient number, since it is larger than the sum of its proper divisors (324347).

15242053 is an equidigital number, since it uses as much as digits as its factorization.

15242053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324346.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 15242053 is about 3904.1071962742. The cubic root of 15242053 is about 247.9406997047.

The spelling of 15242053 in words is "fifteen million, two hundred forty-two thousand, fifty-three".

Divisors: 1 47 324299 15242053