Base | Representation |
---|---|
bin | 10011111101110010010000… |
… | …110101010001110010010100 |
3 | 102111220102201011020000202121 |
4 | 103331302100311101302110 |
5 | 43002124300232110022 |
6 | 510430440122345324 |
7 | 24331654315643536 |
oct | 2375622065216224 |
9 | 374812634200677 |
10 | 87808741285012 |
11 | 25a84529316a70 |
12 | 9a21b0995b244 |
13 | 39cc4374130b7 |
14 | 1797d7405d856 |
15 | a24190a502c7 |
hex | 4fdc90d51c94 |
87808741285012 has 96 divisors (see below), whose sum is σ = 175135684018176. Its totient is φ = 38160273225600.
The previous prime is 87808741284973. The next prime is 87808741285019. The reversal of 87808741285012 is 21058214780878.
It is a super-2 number, since 2×878087412850122 (a number of 29 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87808741285019) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52743238 + ... + 54382594.
It is an arithmetic number, because the mean of its divisors is an integer number (1824330041856).
Almost surely, 287808741285012 is an apocalyptic number.
It is an amenable number.
87808741285012 is a deficient number, since it is larger than the sum of its proper divisors (87326942733164).
87808741285012 is a wasteful number, since it uses less digits than its factorization.
87808741285012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1639877 (or 1639875 counting only the distinct ones).
The product of its (nonzero) digits is 16056320, while the sum is 61.
The spelling of 87808741285012 in words is "eighty-seven trillion, eight hundred eight billion, seven hundred forty-one million, two hundred eighty-five thousand, twelve".
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