Base | Representation |
---|---|
bin | 11010000101100001… |
… | …111011000011011000 |
3 | 2200022001212210021220 |
4 | 122011201323003120 |
5 | 424331034104021 |
6 | 20511224532040 |
7 | 2011054430253 |
oct | 320541730330 |
9 | 80261783256 |
10 | 28010066136 |
11 | 10973a52298 |
12 | 5518621020 |
13 | 2845033740 |
14 | 14da05009a |
15 | ade0a3cc6 |
hex | 68587b0d8 |
28010066136 has 32 divisors (see below), whose sum is σ = 75411717360. Its totient is φ = 8618481792.
The previous prime is 28010066131. The next prime is 28010066143. The reversal of 28010066136 is 63166001082.
It is a junction number, because it is equal to n+sod(n) for n = 28010066097 and 28010066106.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28010066131) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44887615 + ... + 44888238.
Almost surely, 228010066136 is an apocalyptic number.
28010066136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.
It is an amenable number.
28010066136 is an abundant number, since it is smaller than the sum of its proper divisors (47401651224).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28010066136 is a wasteful number, since it uses less digits than its factorization.
28010066136 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 89775875 (or 89775871 counting only the distinct ones).
The product of its (nonzero) digits is 10368, while the sum is 33.
The spelling of 28010066136 in words is "twenty-eight billion, ten million, sixty-six thousand, one hundred thirty-six".
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