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12430242 = 2321167937
BaseRepresentation
bin101111011010…
…101110100010
3212101112002100
4233122232202
511140231432
61122231230
7210440526
oct57325642
925345070
1012430242
117020030
1241b5516
132762a96
141917d86
15115807c
hexbdaba2

12430242 has 48 divisors (see below), whose sum is σ = 29850912. Its totient is φ = 3706560.

The previous prime is 12430219. The next prime is 12430267. The reversal of 12430242 is 24203421.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 12798 + ... + 13734.

It is an arithmetic number, because the mean of its divisors is an integer number (621894).

Almost surely, 212430242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12430242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14925456).

12430242 is an abundant number, since it is smaller than the sum of its proper divisors (17420670).

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

12430242 is a wasteful number, since it uses less digits than its factorization.

12430242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023 (or 1020 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 12430242 is about 3525.6548327935. The cubic root of 12430242 is about 231.6469188235.

Adding to 12430242 its reverse (24203421), we get a palindrome (36633663).

The spelling of 12430242 in words is "twelve million, four hundred thirty thousand, two hundred forty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 67 99 134 198 201 402 603 737 937 1206 1474 1874 2211 2811 4422 5622 6633 8433 10307 13266 16866 20614 30921 61842 62779 92763 125558 185526 188337 376674 565011 690569 1130022 1381138 2071707 4143414 6215121 12430242