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12500213 = 111136383
BaseRepresentation
bin101111101011…
…110011110101
3212112002001212
4233223303311
511200001323
61123531205
7211151525
oct57536365
925462055
1012500213
117068660
124229b05
13278889b
141935685
15116db78
hexbebcf5

12500213 has 4 divisors (see below), whose sum is σ = 13636608. Its totient is φ = 11363820.

The previous prime is 12500197. The next prime is 12500221. The reversal of 12500213 is 31200521.

It is a happy number.

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 not a de Polignac number, because 12500213 - 24 = 12500197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12500263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568181 + ... + 568202.

It is an arithmetic number, because the mean of its divisors is an integer number (3409152).

Almost surely, 212500213 is an apocalyptic number.

It is an amenable number.

12500213 is a deficient number, since it is larger than the sum of its proper divisors (1136395).

12500213 is a wasteful number, since it uses less digits than its factorization.

12500213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136394.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 12500213 is about 3535.5640285533. The cubic root of 12500213 is about 232.0807598844.

Adding to 12500213 its reverse (31200521), we get a palindrome (43700734).

The spelling of 12500213 in words is "twelve million, five hundred thousand, two hundred thirteen".

Divisors: 1 11 1136383 12500213