Base | Representation |
---|---|
bin | 1000010111101001111… |
… | …1001100100010001000 |
3 | 111202010220012220101120 |
4 | 2011322133030202020 |
5 | 4323434430401140 |
6 | 150020011315240 |
7 | 13250136434103 |
oct | 2057237144210 |
9 | 452126186346 |
10 | 143788918920 |
11 | 55a87106a99 |
12 | 23a4a74bb20 |
13 | 1073684975a |
14 | 6d6091773a |
15 | 3b1869e1d0 |
hex | 217a7cc888 |
143788918920 has 32 divisors (see below), whose sum is σ = 431366757120. Its totient is φ = 38343711680.
The previous prime is 143788918909. The next prime is 143788918927. The reversal of 143788918920 is 29819887341.
143788918920 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (60).
It is not an unprimeable number, because it can be changed into a prime (143788918927) 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 7 ways as a sum of consecutive naturals, for example, 599120376 + ... + 599120615.
It is an arithmetic number, because the mean of its divisors is an integer number (13480211160).
Almost surely, 2143788918920 is an apocalyptic number.
143788918920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
143788918920 is an abundant number, since it is smaller than the sum of its proper divisors (287577838200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
143788918920 is a wasteful number, since it uses less digits than its factorization.
143788918920 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1198241005 (or 1198241001 counting only the distinct ones).
The product of its (nonzero) digits is 6967296, while the sum is 60.
The spelling of 143788918920 in words is "one hundred forty-three billion, seven hundred eighty-eight million, nine hundred eighteen thousand, nine hundred twenty".
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