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12430530 = 233576577
BaseRepresentation
bin101111011010…
…110011000010
3212101112111000
4233122303002
511140234110
61122232430
7210441420
oct57326302
925345430
1012430530
117020272
1241b5716
132762c58
141918110
1511581c0
hexbdacc2

12430530 has 64 divisors (see below), whose sum is σ = 37889280. Its totient is φ = 2840832.

The previous prime is 12430507. The next prime is 12430547. The reversal of 12430530 is 3503421.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1399 + ... + 5178.

It is an arithmetic number, because the mean of its divisors is an integer number (592020).

Almost surely, 212430530 is an apocalyptic number.

12430530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12430530 is an abundant number, since it is smaller than the sum of its proper divisors (25458750).

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

12430530 is a wasteful number, since it uses less digits than its factorization.

12430530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6600 (or 6594 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 12430530 is about 3525.6956760333. The cubic root of 12430530 is about 231.6487078419.

Adding to 12430530 its reverse (3503421), we get a palindrome (15933951).

The spelling of 12430530 in words is "twelve million, four hundred thirty thousand, five hundred thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 42 45 54 63 70 90 105 126 135 189 210 270 315 378 630 945 1890 6577 13154 19731 32885 39462 46039 59193 65770 92078 98655 118386 138117 177579 197310 230195 276234 295965 355158 414351 460390 591930 690585 828702 887895 1243053 1381170 1775790 2071755 2486106 4143510 6215265 12430530