Search a number
-
+
15043145 = 513231433
BaseRepresentation
bin111001011000…
…101001001001
31001022021022112
4321120221021
512322340040
61254232105
7241602365
oct71305111
931267275
1015043145
118545157
125055635
133169190
141dd82a5
1514c2365
hexe58a49

15043145 has 8 divisors (see below), whose sum is σ = 19440456. Its totient is φ = 11108736.

The previous prime is 15043139. The next prime is 15043159. The reversal of 15043145 is 54134051.

It can be written as a sum of positive squares in 4 ways, for example, as 1530169 + 13512976 = 1237^2 + 3676^2 .

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 15043145 - 24 = 15043129 is a prime.

It is a super-2 number, since 2×150431452 = 452592422982050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15043145.

It is an unprimeable number.

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, 115652 + ... + 115781.

It is an arithmetic number, because the mean of its divisors is an integer number (2430057).

Almost surely, 215043145 is an apocalyptic number.

It is an amenable number.

15043145 is a deficient number, since it is larger than the sum of its proper divisors (4397311).

15043145 is a wasteful number, since it uses less digits than its factorization.

15043145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231451.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 15043145 is about 3878.5493422155. The cubic root of 15043145 is about 246.8574360201.

Adding to 15043145 its reverse (54134051), we get a palindrome (69177196).

The spelling of 15043145 in words is "fifteen million, forty-three thousand, one hundred forty-five".

Divisors: 1 5 13 65 231433 1157165 3008629 15043145