Search a number
-
+
12237668 = 2214920533
BaseRepresentation
bin101110101011…
…101101100100
3212000201220222
4232223231210
511113101133
61114143512
7206006222
oct56535544
925021828
1012237668
1169a9383
124121b98
1326c6231
1418a7b12
15111ae98
hexbabb64

12237668 has 12 divisors (see below), whose sum is σ = 21560700. Its totient is φ = 6077472.

The previous prime is 12237661. The next prime is 12237683. The reversal of 12237668 is 86673221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4631104 + 7606564 = 2152^2 + 2758^2 .

It is not an unprimeable number, because it can be changed into a prime (12237661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9671 + ... + 10862.

It is an arithmetic number, because the mean of its divisors is an integer number (1796725).

Almost surely, 212237668 is an apocalyptic number.

It is an amenable number.

12237668 is a deficient number, since it is larger than the sum of its proper divisors (9323032).

12237668 is a wasteful number, since it uses less digits than its factorization.

12237668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20686 (or 20684 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 12237668 is about 3498.2378421142. The cubic root of 12237668 is about 230.4444336643. Note that the first 4 decimals are identical.

The spelling of 12237668 in words is "twelve million, two hundred thirty-seven thousand, six hundred sixty-eight".

Divisors: 1 2 4 149 298 596 20533 41066 82132 3059417 6118834 12237668