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982005920431 = 17792040735831
BaseRepresentation
bin11100100101001000001…
…11010011001010101111
310110212201200101110202121
432102210013103022233
5112042122003423211
62031043254533411
7130643010412444
oct16224407231257
93425650343677
10982005920431
11349514817658
1213a39b967267
13717ab35bc93
143575a71b9cb
151a826b7c271
hexe4a41d32af

982005920431 has 16 divisors (see below), whose sum is σ = 1053013616640. Its totient is φ = 912471431040.

The previous prime is 982005920411. The next prime is 982005920459. The reversal of 982005920431 is 134029500289.

982005920431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 982005920431 - 225 = 981972365999 is a prime.

It is a super-2 number, since 2×9820059204312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (982005920411) 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, 27388686 + ... + 27424516.

It is an arithmetic number, because the mean of its divisors is an integer number (65813351040).

Almost surely, 2982005920431 is an apocalyptic number.

982005920431 is a deficient number, since it is larger than the sum of its proper divisors (71007696209).

982005920431 is a wasteful number, since it uses less digits than its factorization.

982005920431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56334.

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 982005920431 in words is "nine hundred eighty-two billion, five million, nine hundred twenty thousand, four hundred thirty-one".

Divisors: 1 17 79 1343 20407 35831 346919 609127 1612153 2830649 27406601 48121033 731203217 12430454689 57765054143 982005920431