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231003223000 = 23531121000293
BaseRepresentation
bin1101011100100011011…
…1010111001111011000
3211002021000022121002221
43113020313113033120
512241043311114000
6254042120433424
722455321666154
oct3271067271730
9732230277087
10231003223000
1189a7132a550
123892a618874
1318a254ac444
14b275876064
1560201b961a
hex35c8dd73d8

231003223000 has 64 divisors (see below), whose sum is σ = 589688255520. Its totient is φ = 84001168000.

The previous prime is 231003222953. The next prime is 231003223051. The reversal of 231003223000 is 322300132.

It is a congruent number.

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, 10489147 + ... + 10511146.

Almost surely, 2231003223000 is an apocalyptic number.

231003223000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231003223000 is an abundant number, since it is smaller than the sum of its proper divisors (358685032520).

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

231003223000 is a wasteful number, since it uses less digits than its factorization.

231003223000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21000325 (or 21000311 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 231003223000 its reverse (322300132), we get a palindrome (231325523132).

The spelling of 231003223000 in words is "two hundred thirty-one billion, three million, two hundred twenty-three thousand".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 88 100 110 125 200 220 250 275 440 500 550 1000 1100 1375 2200 2750 5500 11000 21000293 42000586 84001172 105001465 168002344 210002930 231003223 420005860 462006446 525007325 840011720 924012892 1050014650 1155016115 1848025784 2100029300 2310032230 2625036625 4200058600 4620064460 5250073250 5775080575 9240128920 10500146500 11550161150 21000293000 23100322300 28875402875 46200644600 57750805750 115501611500 231003223000