Base | Representation |
---|---|
bin | 11000101011010… |
… | …01001101100101 |
3 | 112102111201012021 |
4 | 30111221031211 |
5 | 410443003141 |
6 | 32312423141 |
7 | 5062321525 |
oct | 1425511545 |
9 | 472451167 |
10 | 207000421 |
11 | a6934531 |
12 | 593a7ab1 |
13 | 33b68774 |
14 | 1d6c5685 |
15 | 1328d6d1 |
hex | c569365 |
207000421 has 8 divisors (see below), whose sum is σ = 218530080. Its totient is φ = 195534288.
The previous prime is 207000407. The next prime is 207000427. The reversal of 207000421 is 124000702.
207000421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 207000421 - 213 = 206992229 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 207000395 and 207000404.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (207000427) 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, 9106 + ... + 22291.
It is an arithmetic number, because the mean of its divisors is an integer number (27316260).
Almost surely, 2207000421 is an apocalyptic number.
It is an amenable number.
207000421 is a deficient number, since it is larger than the sum of its proper divisors (11529659).
207000421 is a wasteful number, since it uses less digits than its factorization.
207000421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31763.
The product of its (nonzero) digits is 112, while the sum is 16.
The square root of 207000421 is about 14387.5092006921. The cubic root of 207000421 is about 591.5485710033.
The spelling of 207000421 in words is "two hundred seven million, four hundred twenty-one", and thus it is an aban number.
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