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20302200112 = 2419893312267
BaseRepresentation
bin10010111010000110…
…101111110100110000
31221101220011121212111
4102322012233310300
5313034330400422
613154322335104
71316051565535
oct227206576460
957356147774
1020302200112
118679076487
123b271ba494
131bb7195c7c
14da84acd8c
157dc561a77
hex4ba1afd30

20302200112 has 80 divisors (see below), whose sum is σ = 42016060800. Its totient is φ = 9475868160.

The previous prime is 20302200103. The next prime is 20302200161. The reversal of 20302200112 is 21100220302.

It is a junction number, because it is equal to n+sod(n) for n = 20302200092 and 20302200101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8954403 + ... + 8956669.

It is an arithmetic number, because the mean of its divisors is an integer number (525200760).

Almost surely, 220302200112 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 20302200112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21008030400).

20302200112 is an abundant number, since it is smaller than the sum of its proper divisors (21713860688).

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

20302200112 is a wasteful number, since it uses less digits than its factorization.

20302200112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2714 (or 2708 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20302200112 its reverse (21100220302), we get a palindrome (41402420414).

The spelling of 20302200112 in words is "twenty billion, three hundred two million, two hundred thousand, one hundred twelve".

Divisors: 1 2 4 8 16 19 38 76 89 152 178 304 331 356 662 712 1324 1424 1691 2267 2648 3382 4534 5296 6289 6764 9068 12578 13528 18136 25156 27056 29459 36272 43073 50312 58918 86146 100624 117836 172292 201763 235672 344584 403526 471344 559721 689168 750377 807052 1119442 1500754 1614104 2238884 3001508 3228208 3833497 4477768 6003016 7666994 8955536 12006032 14257163 15333988 28514326 30667976 57028652 61335952 66783553 114057304 133567106 228114608 267134212 534268424 1068536848 1268887507 2537775014 5075550028 10151100056 20302200112