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21002301130230 = 23257193172730497
BaseRepresentation
bin1001100011001111110101…
…01100101100010111110110
32202100210121110212110101100
410301213322230230113312
510223100203042131410
6112400153545510530
74265236413040260
oct461477254542766
982323543773340
1021002301130230
116768031506152
1224324781a2446
13b9467c22bca4
14528734148b30
152664b86438c0
hex1319fab2c5f6

21002301130230 has 96 divisors (see below), whose sum is σ = 62730189497664. Its totient is φ = 4775652753408.

The previous prime is 21002301130207. The next prime is 21002301130271. The reversal of 21002301130230 is 3203110320012.

21002301130230 is a `hidden beast` number, since 2 + 1 + 0 + 0 + 2 + 301 + 130 + 230 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86243659 + ... + 86486838.

It is an arithmetic number, because the mean of its divisors is an integer number (653439473934).

Almost surely, 221002301130230 is an apocalyptic number.

21002301130230 is an abundant number, since it is smaller than the sum of its proper divisors (41727888367434).

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

21002301130230 is a wasteful number, since it uses less digits than its factorization.

21002301130230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172730710 (or 172730707 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21002301130230 its reverse (3203110320012), we get a palindrome (24205411450242).

The spelling of 21002301130230 in words is "twenty-one trillion, two billion, three hundred one million, one hundred thirty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 193 210 315 386 579 630 965 1158 1351 1737 1930 2702 2895 3474 4053 5790 6755 8106 8685 12159 13510 17370 20265 24318 40530 60795 121590 172730497 345460994 518191491 863652485 1036382982 1209113479 1554574473 1727304970 2418226958 2590957455 3109148946 3627340437 5181914910 6045567395 7254680874 7772872365 10882021311 12091134790 15545744730 18136702185 21764042622 33336985921 36273404370 54410106555 66673971842 100010957763 108820213110 166684929605 200021915526 233358901447 300032873289 333369859210 466717802894 500054788815 600065746578 700076704341 1000109577630 1166794507235 1400153408682 1500164366445 2100230113023 2333589014470 3000328732890 3500383521705 4200460226046 7000767043410 10501150565115 21002301130230