Base | Representation |
---|---|
bin | 1000010010101010111… |
… | …0001101010011111011 |
3 | 111121200122002011120112 |
4 | 2010222232031103323 |
5 | 4313214333130422 |
6 | 145235124214535 |
7 | 13202026530113 |
oct | 2045256152373 |
9 | 447618064515 |
10 | 142450676987 |
11 | 5545a76a023 |
12 | 2373653a44b |
13 | 10582512218 |
14 | 6c74cc0043 |
15 | 3a8ae57ee2 |
hex | 212ab8d4fb |
142450676987 has 2 divisors, whose sum is σ = 142450676988. Its totient is φ = 142450676986.
The previous prime is 142450676981. The next prime is 142450677041. The reversal of 142450676987 is 789676054241.
It is a weak prime.
It is an emirp because it is prime and its reverse (789676054241) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 142450676987 - 216 = 142450611451 is a prime.
It is a super-2 number, since 2×1424506769872 (a number of 23 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (142450676981) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71225338493 + 71225338494.
It is an arithmetic number, because the mean of its divisors is an integer number (71225338494).
Almost surely, 2142450676987 is an apocalyptic number.
142450676987 is a deficient number, since it is larger than the sum of its proper divisors (1).
142450676987 is an equidigital number, since it uses as much as digits as its factorization.
142450676987 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 20321280, while the sum is 59.
The spelling of 142450676987 in words is "one hundred forty-two billion, four hundred fifty million, six hundred seventy-six thousand, nine hundred eighty-seven".
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