Search a number
-
+
15000213 = 314293499
BaseRepresentation
bin111001001110…
…001010010101
31001020002102110
4321032022111
512320001323
61253301233
7241333254
oct71161225
931202373
1015000213
118515978
125034819
133152787
141dc679b
1514b4793
hexe4e295

15000213 has 8 divisors (see below), whose sum is σ = 20020000. Its totient is φ = 9990288.

The previous prime is 15000211. The next prime is 15000233. The reversal of 15000213 is 31200051.

15000213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15000213 - 21 = 15000211 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 (15000211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2538 + ... + 6036.

It is an arithmetic number, because the mean of its divisors is an integer number (2502500).

Almost surely, 215000213 is an apocalyptic number.

It is an amenable number.

15000213 is a deficient number, since it is larger than the sum of its proper divisors (5019787).

15000213 is a wasteful number, since it uses less digits than its factorization.

15000213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4931.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 15000213 is about 3873.0108442916. The cubic root of 15000213 is about 246.6223747679.

Adding to 15000213 its reverse (31200051), we get a palindrome (46200264).

The spelling of 15000213 in words is "fifteen million, two hundred thirteen", and thus it is an aban number.

Divisors: 1 3 1429 3499 4287 10497 5000071 15000213