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204230223020 = 225139311236219
BaseRepresentation
bin1011111000110100010…
…0011110010010101100
3201112011011012021120002
42332031010132102230
511321230414114040
6233453322243432
720520005152505
oct2761504362254
9645134167502
10204230223020
117968270038a
12336b8356578
131634984a515
149c55c43bac
1554a4a23a15
hex2f8d11e4ac

204230223020 has 48 divisors (see below), whose sum is σ = 433359763200. Its totient is φ = 80843248320.

The previous prime is 204230223017. The next prime is 204230223031. The reversal of 204230223020 is 20322032402.

204230223020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 204230222983 and 204230223001.

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 15 ways as a sum of consecutive naturals, for example, 746471 + ... + 982689.

It is an arithmetic number, because the mean of its divisors is an integer number (9028328400).

Almost surely, 2204230223020 is an apocalyptic number.

204230223020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204230223020 is an abundant number, since it is smaller than the sum of its proper divisors (229129540180).

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

204230223020 is a wasteful number, since it uses less digits than its factorization.

204230223020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236678 (or 236676 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 204230223020 its reverse (20322032402), we get a palindrome (224552255422).

The spelling of 204230223020 in words is "two hundred four billion, two hundred thirty million, two hundred twenty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 139 278 311 556 622 695 1244 1390 1555 2780 3110 6220 43229 86458 172916 216145 236219 432290 472438 864580 944876 1181095 2362190 4724380 32834441 65668882 73464109 131337764 146928218 164172205 293856436 328344410 367320545 656688820 734641090 1469282180 10211511151 20423022302 40846044604 51057555755 102115111510 204230223020