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12442560 = 263513997
BaseRepresentation
bin101111011101…
…101111000000
3212102010222120
4233131233000
511141130220
61122404240
7210521454
oct57355700
925363876
1012442560
117029309
124200680
132768580
14191c664
15115ba40
hexbddbc0

12442560 has 112 divisors (see below), whose sum is σ = 42586656. Its totient is φ = 3059712.

The previous prime is 12442553. The next prime is 12442561. The reversal of 12442560 is 6524421.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12442560.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12442561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11982 + ... + 12978.

It is an arithmetic number, because the mean of its divisors is an integer number (380238).

Almost surely, 212442560 is an apocalyptic number.

12442560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12442560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21293328).

12442560 is an abundant number, since it is smaller than the sum of its proper divisors (30144096).

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

12442560 is a wasteful number, since it uses less digits than its factorization.

12442560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030 (or 1020 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 12442560 is about 3527.4013097463. The cubic root of 12442560 is about 231.7234119631.

Adding to 12442560 its reverse (6524421), we get a palindrome (18966981).

The spelling of 12442560 in words is "twelve million, four hundred forty-two thousand, five hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 64 65 78 80 96 104 120 130 156 160 192 195 208 240 260 312 320 390 416 480 520 624 780 832 960 997 1040 1248 1560 1994 2080 2496 2991 3120 3988 4160 4985 5982 6240 7976 9970 11964 12480 12961 14955 15952 19940 23928 25922 29910 31904 38883 39880 47856 51844 59820 63808 64805 77766 79760 95712 103688 119640 129610 155532 159520 191424 194415 207376 239280 259220 311064 319040 388830 414752 478560 518440 622128 777660 829504 957120 1036880 1244256 1555320 2073760 2488512 3110640 4147520 6221280 12442560