Base | Representation |
---|---|
bin | 1000010011001011100… |
… | …1010101110000101000 |
3 | 111122001012010101200120 |
4 | 2010302321111300220 |
5 | 4314004440003104 |
6 | 145300503403240 |
7 | 13205313261225 |
oct | 2046271256050 |
9 | 448035111616 |
10 | 142587812904 |
11 | 55520115299 |
12 | 23774453520 |
13 | 105a4a58a34 |
14 | 6c891ba94c |
15 | 3a97ee5cd9 |
hex | 2132e55c28 |
142587812904 has 32 divisors (see below), whose sum is σ = 361789977120. Its totient is φ = 46819878336.
The previous prime is 142587812879. The next prime is 142587812947. The reversal of 142587812904 is 409218785241.
It is a super-4 number, since 4×1425878129044 (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44335399 + ... + 44338614.
It is an arithmetic number, because the mean of its divisors is an integer number (11305936785).
Almost surely, 2142587812904 is an apocalyptic number.
It is an amenable number.
142587812904 is an abundant number, since it is smaller than the sum of its proper divisors (219202164216).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142587812904 is a wasteful number, since it uses less digits than its factorization.
142587812904 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 88674089 (or 88674085 counting only the distinct ones).
The product of its (nonzero) digits is 1290240, while the sum is 51.
The spelling of 142587812904 in words is "one hundred forty-two billion, five hundred eighty-seven million, eight hundred twelve thousand, nine hundred four".
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