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23230130220 = 223251111732389
BaseRepresentation
bin10101101000100111…
…111010100000101100
32012221221120212220100
4111220213322200230
5340033403131340
614401034151100
71451443564113
oct255047724054
965857525810
1023230130220
119940891730
124603882490
1322629657ab
1411a52b4c7a
1590e61b830
hex5689fa82c

23230130220 has 72 divisors (see below), whose sum is σ = 76870619280. Its totient is φ = 5631546240.

The previous prime is 23230130219. The next prime is 23230130237. The reversal of 23230130220 is 2203103232.

It is a happy number.

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 = 23230130193 and 23230130202.

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 23 ways as a sum of consecutive naturals, for example, 5864215 + ... + 5868174.

It is an arithmetic number, because the mean of its divisors is an integer number (1067647490).

Almost surely, 223230130220 is an apocalyptic number.

23230130220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23230130220 is an abundant number, since it is smaller than the sum of its proper divisors (53640489060).

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

23230130220 is a wasteful number, since it uses less digits than its factorization.

23230130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11732415 (or 11732410 counting only the distinct ones).

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

Adding to 23230130220 its reverse (2203103232), we get a palindrome (25433233452).

The spelling of 23230130220 in words is "twenty-three billion, two hundred thirty million, one hundred thirty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 11 12 15 18 20 22 30 33 36 44 45 55 60 66 90 99 110 132 165 180 198 220 330 396 495 660 990 1980 11732389 23464778 35197167 46929556 58661945 70394334 105591501 117323890 129056279 140788668 175985835 211183002 234647780 258112558 351971670 387168837 422366004 516225116 527957505 645281395 703943340 774337674 1055915010 1161506511 1290562790 1548675348 1935844185 2111830020 2323013022 2581125580 3871688370 4646026044 5807532555 7743376740 11615065110 23230130220