Base | Representation |
---|---|
bin | 11000110010110… |
… | …11100011011011 |
3 | 112111101010211100 |
4 | 30121123203123 |
5 | 411221234201 |
6 | 32350002443 |
7 | 5103624510 |
oct | 1431334333 |
9 | 474333740 |
10 | 207993051 |
11 | a7452292 |
12 | 597a6423 |
13 | 34125516 |
14 | 1d8a3307 |
15 | 133d7886 |
hex | c65b8db |
207993051 has 12 divisors (see below), whose sum is σ = 343353712. Its totient is φ = 118853136.
The previous prime is 207993029. The next prime is 207993059. The reversal of 207993051 is 150399702.
It is not a de Polignac number, because 207993051 - 27 = 207992923 is a prime.
It is a super-2 number, since 2×2079930512 = 86522218528577202, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 207992997 and 207993015.
It is not an unprimeable number, because it can be changed into a prime (207993059) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1650676 + ... + 1650801.
Almost surely, 2207993051 is an apocalyptic number.
207993051 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
207993051 is a deficient number, since it is larger than the sum of its proper divisors (135360661).
207993051 is a wasteful number, since it uses less digits than its factorization.
207993051 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3301490 (or 3301487 counting only the distinct ones).
The product of its (nonzero) digits is 17010, while the sum is 36.
The square root of 207993051 is about 14421.9641866148. The cubic root of 207993051 is about 592.4926154076.
The spelling of 207993051 in words is "two hundred seven million, nine hundred ninety-three thousand, fifty-one".
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