Base | Representation |
---|---|
bin | 1000010100001111011… |
… | …0000000011001110111 |
3 | 111122210000011022011000 |
4 | 2011003312000121313 |
5 | 4320100232323141 |
6 | 145345022014343 |
7 | 13215335152224 |
oct | 2050366003167 |
9 | 448700138130 |
10 | 142872151671 |
11 | 55656672207 |
12 | 238337173b3 |
13 | 1061b932222 |
14 | 6cb4c7494b |
15 | 3ab2e5e5b6 |
hex | 2143d80677 |
142872151671 has 16 divisors (see below), whose sum is σ = 214341721600. Its totient is φ = 94042427544.
The previous prime is 142872151627. The next prime is 142872151679. The reversal of 142872151671 is 176151278241.
142872151671 is a `hidden beast` number, since 1 + 42 + 8 + 7 + 21 + 516 + 71 = 666.
It is not a de Polignac number, because 142872151671 - 210 = 142872150647 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (142872151679) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33488761 + ... + 33493026.
It is an arithmetic number, because the mean of its divisors is an integer number (13396357600).
Almost surely, 2142872151671 is an apocalyptic number.
142872151671 is a deficient number, since it is larger than the sum of its proper divisors (71469569929).
142872151671 is an equidigital number, since it uses as much as digits as its factorization.
142872151671 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 66981875 (or 66981869 counting only the distinct ones).
The product of its digits is 188160, while the sum is 45.
The spelling of 142872151671 in words is "one hundred forty-two billion, eight hundred seventy-two million, one hundred fifty-one thousand, six hundred seventy-one".
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