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20310202224 = 2433133616489
BaseRepresentation
bin10010111010100101…
…010001011101110000
31221102110020011201000
4102322211101131300
5313043402432344
613155210042000
71316206604364
oct227245213560
957373204630
1020310202224
1186826415a4
123b29a19300
131bb8a38350
14da95932a4
157dd0e2a69
hex4ba951770

20310202224 has 80 divisors (see below), whose sum is σ = 62782266400. Its totient is φ = 6249291264.

The previous prime is 20310202207. The next prime is 20310202273. The reversal of 20310202224 is 42220201302.

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 = 20310202197 and 20310202206.

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, 1802629 + ... + 1813860.

It is an arithmetic number, because the mean of its divisors is an integer number (784778330).

Almost surely, 220310202224 is an apocalyptic number.

20310202224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20310202224 is an abundant number, since it is smaller than the sum of its proper divisors (42472064176).

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

20310202224 is a wasteful number, since it uses less digits than its factorization.

20310202224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3616519 (or 3616507 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 20310202224 its reverse (42220201302), we get a palindrome (62530403526).

The spelling of 20310202224 in words is "twenty billion, three hundred ten million, two hundred two thousand, two hundred twenty-four".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 27 36 39 48 52 54 72 78 104 108 117 144 156 208 216 234 312 351 432 468 624 702 936 1404 1872 2808 5616 3616489 7232978 10849467 14465956 21698934 28931912 32548401 43397868 47014357 57863824 65096802 86795736 94028714 97645203 130193604 141043071 173591472 188057428 195290406 260387208 282086142 376114856 390580812 423129213 520774416 564172284 752229712 781161624 846258426 1128344568 1269387639 1562323248 1692516852 2256689136 2538775278 3385033704 5077550556 6770067408 10155101112 20310202224