Search a number
-
+
12214530 = 2335192381
BaseRepresentation
bin101110100110…
…000100000010
3211222120012000
4232212010002
511111331110
61113444430
7205551606
oct56460402
924876160
1012214530
116992a59
124110716
1326b8843
14189d506
1511141c0
hexba6102

12214530 has 64 divisors (see below), whose sum is σ = 34300800. Its totient is φ = 3084480.

The previous prime is 12214523. The next prime is 12214561. The reversal of 12214530 is 3541221.

12214530 is a `hidden beast` number, since 122 + 14 + 530 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3940 + ... + 6320.

It is an arithmetic number, because the mean of its divisors is an integer number (535950).

Almost surely, 212214530 is an apocalyptic number.

12214530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12214530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17150400).

12214530 is an abundant number, since it is smaller than the sum of its proper divisors (22086270).

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

12214530 is a wasteful number, since it uses less digits than its factorization.

12214530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416 (or 2410 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 12214530 is about 3494.9291838319. The cubic root of 12214530 is about 230.2991067580.

Adding to 12214530 its reverse (3541221), we get a palindrome (15755751).

The spelling of 12214530 in words is "twelve million, two hundred fourteen thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 19 27 30 38 45 54 57 90 95 114 135 171 190 270 285 342 513 570 855 1026 1710 2381 2565 4762 5130 7143 11905 14286 21429 23810 35715 42858 45239 64287 71430 90478 107145 128574 135717 214290 226195 271434 321435 407151 452390 642870 678585 814302 1221453 1357170 2035755 2442906 4071510 6107265 12214530