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204220033212 = 2231311171171981
BaseRepresentation
bin1011111000110001110…
…1100110100010111100
3201112010110000120202210
42332030131212202330
511321220312030322
6233452320020420
720516522432556
oct2761435464274
9645113016683
10204220033212
1179677980658
12336b4a61710
13163476c0450
149c547504d6
1554a3bae70c
hex2f8c7668bc

204220033212 has 48 divisors (see below), whose sum is σ = 513628143392. Its totient is φ = 62780624640.

The previous prime is 204220033211. The next prime is 204220033271. The reversal of 204220033212 is 212330022402.

It is a super-2 number, since 2×2042200332122 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204220033211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411739 + ... + 760242.

Almost surely, 2204220033212 is an apocalyptic number.

It is an amenable number.

204220033212 is an abundant number, since it is smaller than the sum of its proper divisors (309408110180).

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

204220033212 is a wasteful number, since it uses less digits than its factorization.

204220033212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173118 (or 1173116 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 204220033212 its reverse (212330022402), we get a palindrome (416550055614).

The spelling of 204220033212 in words is "two hundred four billion, two hundred twenty million, thirty-three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 1117 2234 3351 4468 6702 13404 14521 29042 43563 58084 87126 174252 1171981 2343962 3515943 4687924 7031886 14063772 15235753 30471506 45707259 60943012 91414518 182829036 1309102777 2618205554 3927308331 5236411108 7854616662 15709233324 17018336101 34036672202 51055008303 68073344404 102110016606 204220033212