Base | Representation |
---|---|
bin | 10010110001000010… |
… | …010001000011011010 |
3 | 1221000021211121110221 |
4 | 102301002101003122 |
5 | 312231401434204 |
6 | 13131245030254 |
7 | 1312223301523 |
oct | 226102210332 |
9 | 57007747427 |
10 | 20150030554 |
11 | 8600192215 |
12 | 3aa425538a |
13 | 1b917b7704 |
14 | d921bb84a |
15 | 7ce004654 |
hex | 4b10910da |
20150030554 has 8 divisors (see below), whose sum is σ = 30227850720. Its totient is φ = 10074080316.
The previous prime is 20150030533. The next prime is 20150030567. The reversal of 20150030554 is 45503005102.
It is a sphenic number, since it is the product of 3 distinct primes.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440224 + ... + 483835.
It is an arithmetic number, because the mean of its divisors is an integer number (3778481340).
Almost surely, 220150030554 is an apocalyptic number.
20150030554 is a deficient number, since it is larger than the sum of its proper divisors (10077820166).
20150030554 is a wasteful number, since it uses less digits than its factorization.
20150030554 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 934964.
The product of its (nonzero) digits is 3000, while the sum is 25.
Adding to 20150030554 its reverse (45503005102), we get a palindrome (65653035656).
The spelling of 20150030554 in words is "twenty billion, one hundred fifty million, thirty thousand, five hundred fifty-four".
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