Search a number
-
+
22630230 = 23257172113
BaseRepresentation
bin101011001010…
…0111101010110
31120120201211200
41112110331112
521243131410
62125013330
7363232230
oct126247526
946521750
1022630230
1111857477
1276b4246
1348c468c
143011250
151ec03c0
hex1594f56

22630230 has 96 divisors (see below), whose sum is σ = 71233344. Its totient is φ = 4866048.

The previous prime is 22630189. The next prime is 22630241. The reversal of 22630230 is 3203622.

22630230 is a `hidden beast` number, since 2 + 2 + 630 + 2 + 30 = 666.

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 47 ways as a sum of consecutive naturals, for example, 9654 + ... + 11766.

It is an arithmetic number, because the mean of its divisors is an integer number (742014).

Almost surely, 222630230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22630230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35616672).

22630230 is an abundant number, since it is smaller than the sum of its proper divisors (48603114).

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

22630230 is a wasteful number, since it uses less digits than its factorization.

22630230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150 (or 2147 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 22630230 is about 4757.1241312373. The cubic root of 22630230 is about 282.8544328307.

Adding to 22630230 its reverse (3203622), we get a palindrome (25833852).

The spelling of 22630230 in words is "twenty-two million, six hundred thirty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 17 18 21 30 34 35 42 45 51 63 70 85 90 102 105 119 126 153 170 210 238 255 306 315 357 510 595 630 714 765 1071 1190 1530 1785 2113 2142 3570 4226 5355 6339 10565 10710 12678 14791 19017 21130 29582 31695 35921 38034 44373 63390 71842 73955 88746 95085 107763 133119 147910 179605 190170 215526 221865 251447 266238 323289 359210 443730 502894 538815 646578 665595 754341 1077630 1257235 1331190 1508682 1616445 2263023 2514470 3232890 3771705 4526046 7543410 11315115 22630230