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30312133332020 = 225113130720994889
BaseRepresentation
bin1101110010001100101111…
…11100001000110000110100
310222022210220200121220201122
412321012113330020300310
512433113222113111040
6144245111331443112
76245656631054441
oct671062774106064
9128283820556648
1030312133332020
119727338037281
123496840156498
1313bb563c16957
1476b187ad69c8
1537874c7941b5
hex1b9197f08c34

30312133332020 has 96 divisors (see below), whose sum is σ = 64311707376000. Its totient is φ = 12000182964224.

The previous prime is 30312133332017. The next prime is 30312133332071. The reversal of 30312133332020 is 2023333121303.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6200065736 + ... + 6200070624.

It is an arithmetic number, because the mean of its divisors is an integer number (669913618500).

Almost surely, 230312133332020 is an apocalyptic number.

It is an amenable number.

30312133332020 is an abundant number, since it is smaller than the sum of its proper divisors (33999574043980).

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

30312133332020 is a wasteful number, since it uses less digits than its factorization.

30312133332020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8417 (or 8415 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 30312133332020 its reverse (2023333121303), we get a palindrome (32335466453323).

The spelling of 30312133332020 in words is "thirty trillion, three hundred twelve billion, one hundred thirty-three million, three hundred thirty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 113 226 452 565 1130 1307 2099 2260 2614 4198 4889 5228 6535 8396 9778 10495 13070 19556 20990 24445 26140 41980 48890 97780 147691 237187 295382 474374 552457 590764 738455 948748 1104914 1185935 1476910 2209828 2371870 2743393 2762285 2953820 4743740 5486786 5524570 6389923 10262011 10973572 11049140 12779846 13716965 20524022 25559692 27433930 31949615 41048044 51310055 54867860 63899230 102620110 127798460 205240220 310003409 620006818 722061299 1159607243 1240013636 1444122598 1550017045 2319214486 2888245196 3100034090 3610306495 4638428972 5798036215 6200068180 7220612990 11596072430 13412448377 14441225980 23192144860 26824896754 53649793508 67062241885 134124483770 268248967540 1515606666601 3031213333202 6062426666404 7578033333005 15156066666010 30312133332020