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806451092061 = 317191755147419
BaseRepresentation
bin10111011110001000011…
…10110001101001011101
32212002120222000011122020
423233010032301221131
5101203102434421221
61414251205410353
7112156416115416
oct13570416615135
92762528004566
10806451092061
1129101768773a
12110366a099b9
135b081635204
142b06503880d
1515e9e831ac6
hexbbc43b1a5d

806451092061 has 32 divisors (see below), whose sum is σ = 1198534809600. Its totient is φ = 479339078400.

The previous prime is 806451092017. The next prime is 806451092081. The reversal of 806451092061 is 160290154608.

It is not a de Polignac number, because 806451092061 - 222 = 806446897757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806451092081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16983210 + ... + 17030628.

It is an arithmetic number, because the mean of its divisors is an integer number (37454212800).

Almost surely, 2806451092061 is an apocalyptic number.

It is an amenable number.

806451092061 is a deficient number, since it is larger than the sum of its proper divisors (392083717539).

806451092061 is a wasteful number, since it uses less digits than its factorization.

806451092061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65009.

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 806451092061 in words is "eight hundred six billion, four hundred fifty-one million, ninety-two thousand, sixty-one".

Divisors: 1 3 17 19 51 57 323 969 17551 47419 52653 142257 298367 333469 806123 895101 900961 1000407 2418369 2702883 5668973 15316337 17006919 45949011 832250869 2496752607 14148264773 15812766511 42444794319 47438299533 268817030687 806451092061