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12207672 = 233418839
BaseRepresentation
bin101110100100…
…011000111000
3211222012210000
4232210120320
511111121142
61113353000
7205522611
oct56443070
924865700
1012207672
116988894
124108760
1326b5699
14189ac08
15111214c
hexba4638

12207672 has 40 divisors (see below), whose sum is σ = 34194600. Its totient is φ = 4069008.

The previous prime is 12207653. The next prime is 12207677. The reversal of 12207672 is 27670221.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12207677) 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 9 ways as a sum of consecutive naturals, for example, 8772 + ... + 10067.

It is an arithmetic number, because the mean of its divisors is an integer number (854865).

Almost surely, 212207672 is an apocalyptic number.

12207672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12207672 is an abundant number, since it is smaller than the sum of its proper divisors (21986928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12207672 is a wasteful number, since it uses less digits than its factorization.

12207672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18857 (or 18844 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 12207672 is about 3493.9479103158. The cubic root of 12207672 is about 230.2559972549.

Adding to 12207672 its reverse (27670221), we get a palindrome (39877893).

The spelling of 12207672 in words is "twelve million, two hundred seven thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 324 648 18839 37678 56517 75356 113034 150712 169551 226068 339102 452136 508653 678204 1017306 1356408 1525959 2034612 3051918 4069224 6103836 12207672