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868134806814 = 231117773738687
BaseRepresentation
bin11001010001000001101…
…11011110010100011110
310001222210210210112211010
430220200313132110132
5103210420002304224
61502452101440050
7116502122050452
oct14504067362436
93058723715733
10868134806814
113051a05145a0
12120300710026
1363b31b59302
1430037374662
15178aecbce29
hexca20dde51e

868134806814 has 32 divisors (see below), whose sum is σ = 2005530679296. Its totient is φ = 247596379520.

The previous prime is 868134806783. The next prime is 868134806821. The reversal of 868134806814 is 418608431868.

868134806814 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×8681348068142 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386868222 + ... + 386870465.

It is an arithmetic number, because the mean of its divisors is an integer number (62672833728).

Almost surely, 2868134806814 is an apocalyptic number.

868134806814 is an abundant number, since it is smaller than the sum of its proper divisors (1137395872482).

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

868134806814 is a wasteful number, since it uses less digits than its factorization.

868134806814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773738720.

The product of its (nonzero) digits is 7077888, while the sum is 57.

The spelling of 868134806814 in words is "eight hundred sixty-eight billion, one hundred thirty-four million, eight hundred six thousand, eight hundred fourteen".

Divisors: 1 2 3 6 11 17 22 33 34 51 66 102 187 374 561 1122 773738687 1547477374 2321216061 4642432122 8511125557 13153557679 17022251114 25533376671 26307115358 39460673037 51066753342 78921346074 144689134469 289378268938 434067403407 868134806814