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22020221230 = 257297463291
BaseRepresentation
bin10100100000100000…
…011110100100101110
32002211121221010210021
4110200200132210232
5330044134034410
614041013432354
71406452535500
oct244040364456
962747833707
1022020221230
11937a928147
12432663b6ba
1320cc0b2007
1410cc725d70
1588d2c4eda
hex52081e92e

22020221230 has 48 divisors (see below), whose sum is σ = 46583084016. Its totient is φ = 7471941120.

The previous prime is 22020221221. The next prime is 22020221239. The reversal of 22020221230 is 3212202022.

It is an interprime number because it is at equal distance from previous prime (22020221221) and next prime (22020221239).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020221239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184116 + ... + 279175.

It is an arithmetic number, because the mean of its divisors is an integer number (970480917).

Almost surely, 222020221230 is an apocalyptic number.

22020221230 is an abundant number, since it is smaller than the sum of its proper divisors (24562862786).

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

22020221230 is a wasteful number, since it uses less digits than its factorization.

22020221230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463409 (or 463402 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 22020221230 its reverse (3212202022), we get a palindrome (25232423252).

The spelling of 22020221230 in words is "twenty-two billion, twenty million, two hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 97 98 194 245 485 490 679 970 1358 3395 4753 6790 9506 23765 47530 463291 926582 2316455 3243037 4632910 6486074 16215185 22701259 32430370 44939227 45402518 89878454 113506295 224696135 227012590 314574589 449392270 629149178 1572872945 2202022123 3145745890 4404044246 11010110615 22020221230