Base | Representation |
---|---|
bin | 11000110001110… |
… | …01011010011101 |
3 | 112111010001000011 |
4 | 30120321122131 |
5 | 411202300323 |
6 | 32343003221 |
7 | 5102503021 |
oct | 1430713235 |
9 | 474101004 |
10 | 207853213 |
11 | a7367217 |
12 | 59739511 |
13 | 340a6989 |
14 | 1d868381 |
15 | 133ab20d |
hex | c63969d |
207853213 has 4 divisors (see below), whose sum is σ = 208169280. Its totient is φ = 207537148.
The previous prime is 207853211. The next prime is 207853241. The reversal of 207853213 is 312358702.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312358702 = 2 ⋅156179351.
It is a cyclic number.
It is not a de Polignac number, because 207853213 - 21 = 207853211 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (207853211) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157045 + ... + 158362.
It is an arithmetic number, because the mean of its divisors is an integer number (52042320).
Almost surely, 2207853213 is an apocalyptic number.
It is an amenable number.
207853213 is a deficient number, since it is larger than the sum of its proper divisors (316067).
207853213 is an equidigital number, since it uses as much as digits as its factorization.
207853213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 316066.
The product of its (nonzero) digits is 10080, while the sum is 31.
The square root of 207853213 is about 14417.1152801107. The cubic root of 207853213 is about 592.3598039879.
The spelling of 207853213 in words is "two hundred seven million, eight hundred fifty-three thousand, two hundred thirteen".
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