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10221430 = 2519232339
BaseRepresentation
bin100110111111…
…011101110110
3201020022011111
4212333131312
510104041210
61003025234
7152611042
oct46773566
921208144
1010221430
11585156a
12350b21a
13216b5ab
141501022
15d6d88a
hex9bf776

10221430 has 32 divisors (see below), whose sum is σ = 20217600. Its totient is φ = 3703392.

The previous prime is 10221397. The next prime is 10221443. The reversal of 10221430 is 3412201.

It is a self number, because there is not a number n which added to its sum of digits gives 10221430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3201 + ... + 5539.

It is an arithmetic number, because the mean of its divisors is an integer number (631800).

Almost surely, 210221430 is an apocalyptic number.

10221430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10221430 is a deficient number, since it is larger than the sum of its proper divisors (9996170).

10221430 is a wasteful number, since it uses less digits than its factorization.

10221430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 10221430 is about 3197.0971208270. The cubic root of 10221430 is about 217.0220623579.

Adding to 10221430 its reverse (3412201), we get a palindrome (13633631).

The spelling of 10221430 in words is "ten million, two hundred twenty-one thousand, four hundred thirty".

Divisors: 1 2 5 10 19 23 38 46 95 115 190 230 437 874 2185 2339 4370 4678 11695 23390 44441 53797 88882 107594 222205 268985 444410 537970 1022143 2044286 5110715 10221430