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12242748 = 2237247443
BaseRepresentation
bin101110101100…
…111100111100
3212000222220010
4232230330330
511113231443
61114223220
7206030100
oct56547474
925028803
1012242748
116a02181
124124b10
1326c863b
1418a9900
15111c733
hexbacf3c

12242748 has 72 divisors (see below), whose sum is σ = 34013952. Its totient is φ = 3415776.

The previous prime is 12242729. The next prime is 12242773. The reversal of 12242748 is 84724221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27415 + ... + 27857.

It is an arithmetic number, because the mean of its divisors is an integer number (472416).

Almost surely, 212242748 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12242748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17006976).

12242748 is an abundant number, since it is smaller than the sum of its proper divisors (21771204).

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

12242748 is a wasteful number, since it uses less digits than its factorization.

12242748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511 (or 502 counting only the distinct ones).

The product of its digits is 7168, while the sum is 30.

The square root of 12242748 is about 3498.9638466266. The cubic root of 12242748 is about 230.4763159853.

Adding to 12242748 its reverse (84724221), we get a palindrome (96966969).

The spelling of 12242748 in words is "twelve million, two hundred forty-two thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 47 49 84 94 98 141 147 188 196 282 294 329 443 564 588 658 886 987 1316 1329 1772 1974 2303 2658 3101 3948 4606 5316 6202 6909 9212 9303 12404 13818 18606 20821 21707 27636 37212 41642 43414 62463 65121 83284 86828 124926 130242 145747 249852 260484 291494 437241 582988 874482 1020229 1748964 2040458 3060687 4080916 6121374 12242748