Search a number
-
+
30020123224 = 2372139376287
BaseRepresentation
bin11011111101010101…
…101011101001011000
32212111011011021020201
4123331111223221120
5442440122420344
621442511231544
72111632560100
oct337525535130
985434137221
1030020123224
11118056389a3
1259998185b4
132aa55bc630
14164ada6200
15baa7a14d4
hex6fd56ba58

30020123224 has 96 divisors (see below), whose sum is σ = 70600783680. Its totient is φ = 11861531136.

The previous prime is 30020123209. The next prime is 30020123249. The reversal of 30020123224 is 42232102003.

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, 4771809 + ... + 4778095.

It is an arithmetic number, because the mean of its divisors is an integer number (735424830).

Almost surely, 230020123224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30020123224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35300391840).

30020123224 is an abundant number, since it is smaller than the sum of its proper divisors (40580660456).

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

30020123224 is a wasteful number, since it uses less digits than its factorization.

30020123224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7257 (or 7246 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 30020123224 its reverse (42232102003), we get a palindrome (72252225227).

The spelling of 30020123224 in words is "thirty billion, twenty million, one hundred twenty-three thousand, two hundred twenty-four".

Divisors: 1 2 4 7 8 13 14 26 28 49 52 56 91 98 104 182 196 364 392 637 728 937 1274 1874 2548 3748 5096 6287 6559 7496 12181 12574 13118 24362 25148 26236 44009 45913 48724 50296 52472 81731 85267 88018 91826 97448 163462 170534 176036 183652 308063 326924 341068 352072 367304 572117 596869 616126 653848 682136 1144234 1193738 1232252 2288468 2387476 2464504 4004819 4576936 4774952 5890919 8009638 11781838 16019276 23563676 32038552 41236433 47127352 76581947 82472866 153163894 164945732 288655031 306327788 329891464 536073629 577310062 612655576 1072147258 1154620124 2144294516 2309240248 3752515403 4288589032 7505030806 15010061612 30020123224