Base | Representation |
---|---|
bin | 10000111110111… |
… | …10101110000010 |
3 | 100221002020010100 |
4 | 20133132232002 |
5 | 242433020033 |
6 | 22045343230 |
7 | 3346655325 |
oct | 1037365602 |
9 | 327066110 |
10 | 142470018 |
11 | 73469919 |
12 | 3b867b16 |
13 | 236936b2 |
14 | 14cc87bc |
15 | c793513 |
hex | 87deb82 |
142470018 has 24 divisors (see below), whose sum is σ = 324932400. Its totient is φ = 44990424.
The previous prime is 142470007. The next prime is 142470023. The reversal of 142470018 is 810074241.
It is a junction number, because it is equal to n+sod(n) for n = 142469973 and 142470000.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 207948 + ... + 208631.
It is an arithmetic number, because the mean of its divisors is an integer number (13538850).
Almost surely, 2142470018 is an apocalyptic number.
142470018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
142470018 is an abundant number, since it is smaller than the sum of its proper divisors (182462382).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142470018 is a wasteful number, since it uses less digits than its factorization.
142470018 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 416606 (or 416603 counting only the distinct ones).
The product of its (nonzero) digits is 1792, while the sum is 27.
The square root of 142470018 is about 11936.0805124630. The cubic root of 142470018 is about 522.2853286614.
The spelling of 142470018 in words is "one hundred forty-two million, four hundred seventy thousand, eighteen".
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