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20302122230 = 2513533498443
BaseRepresentation
bin10010111010000110…
…011100110011110110
31221101220000200000222
4102322012130303312
5313034320402410
613154320534342
71316051122505
oct227206346366
957356020028
1020302122230
118679022a15
123b271813b2
131bb71696a0
14da848c83c
157dc548955
hex4ba19ccf6

20302122230 has 64 divisors (see below), whose sum is σ = 40217083200. Its totient is φ = 7332788736.

The previous prime is 20302122229. The next prime is 20302122257. The reversal of 20302122230 is 3222120302.

It is a junction number, because it is equal to n+sod(n) for n = 20302122199 and 20302122208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2400389 + ... + 2408831.

It is an arithmetic number, because the mean of its divisors is an integer number (628391925).

Almost surely, 220302122230 is an apocalyptic number.

20302122230 is a deficient number, since it is larger than the sum of its proper divisors (19914960970).

20302122230 is a wasteful number, since it uses less digits than its factorization.

20302122230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8865.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20302122230 its reverse (3222120302), we get a palindrome (23524242532).

The spelling of 20302122230 in words is "twenty billion, three hundred two million, one hundred twenty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 53 65 106 130 265 349 530 689 698 1378 1745 3445 3490 4537 6890 8443 9074 16886 18497 22685 36994 42215 45370 84430 92485 109759 184970 219518 240461 447479 480922 548795 894958 1097590 1202305 2237395 2404610 2946607 4474790 5817227 5893214 11634454 14733035 29086135 29466070 38305891 58172270 76611782 156170171 191529455 312340342 383058910 780850855 1561701710 2030212223 4060424446 10151061115 20302122230