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23130123030 = 2325797137811
BaseRepresentation
bin10101100010101010…
…011010101100010110
32012200222101222211100
4111202222122230112
5334332302414110
614343102450530
71446120542010
oct254252325426
965628358740
1023130123030
11989a395863
124596293a46
13224801b941
141195cc11b0
15905964bc0
hex562a9ab16

23130123030 has 96 divisors (see below), whose sum is σ = 68802110208. Its totient is φ = 5281300800.

The previous prime is 23130123017. The next prime is 23130123053. The reversal of 23130123030 is 3032103132.

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

It is a junction number, because it is equal to n+sod(n) for n = 23130122994 and 23130123012.

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 47 ways as a sum of consecutive naturals, for example, 592825 + ... + 630635.

It is an arithmetic number, because the mean of its divisors is an integer number (716688648).

Almost surely, 223130123030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23130123030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34401055104).

23130123030 is an abundant number, since it is smaller than the sum of its proper divisors (45671987178).

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

23130123030 is a wasteful number, since it uses less digits than its factorization.

23130123030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38802 (or 38799 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 23130123030 its reverse (3032103132), we get a palindrome (26162226162).

The spelling of 23130123030 in words is "twenty-three billion, one hundred thirty million, one hundred twenty-three thousand, thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 210 315 630 971 1942 2913 4855 5826 6797 8739 9710 13594 14565 17478 20391 29130 33985 37811 40782 43695 61173 67970 75622 87390 101955 113433 122346 189055 203910 226866 264677 305865 340299 378110 529354 567165 611730 680598 794031 1134330 1323385 1588062 1701495 2382093 2646770 3402990 3970155 4764186 7940310 11910465 23820930 36714481 73428962 110143443 183572405 220286886 257001367 330430329 367144810 514002734 550717215 660860658 771004101 1101434430 1285006835 1542008202 1652151645 2313012303 2570013670 3304303290 3855020505 4626024606 7710041010 11565061515 23130123030