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82020369912 = 233131601164201
BaseRepresentation
bin100110001100011001…
…0111000010111111000
321211201010210111111020
41030120302320113320
52320434203314122
6101402445102440
75632353432615
oct1143062702770
9254633714436
1082020369912
113186a3a6988
1213a90557a20
137971891a80
143d8121750c
152200a56c5c
hex1318cb85f8

82020369912 has 64 divisors (see below), whose sum is σ = 220963347360. Its totient is φ = 25221120000.

The previous prime is 82020369883. The next prime is 82020369917. The reversal of 82020369912 is 21996302028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82020369917) 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, 417412 + ... + 581612.

Almost surely, 282020369912 is an apocalyptic number.

It is an amenable number.

82020369912 is an abundant number, since it is smaller than the sum of its proper divisors (138942977448).

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

82020369912 is a wasteful number, since it uses less digits than its factorization.

82020369912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165824 (or 165820 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The spelling of 82020369912 in words is "eighty-two billion, twenty million, three hundred sixty-nine thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 1601 3202 4803 6404 9606 12808 19212 20813 38424 41626 62439 83252 124878 164201 166504 249756 328402 492603 499512 656804 985206 1313608 1970412 2134613 3940824 4269226 6403839 8538452 12807678 17076904 25615356 51230712 262885801 525771602 788657403 1051543204 1577314806 2103086408 3154629612 3417515413 6309259224 6835030826 10252546239 13670061652 20505092478 27340123304 41010184956 82020369912