Base | Representation |
---|---|
bin | 11000111000100… |
… | …10100001011111 |
3 | 112112210012212112 |
4 | 30130102201133 |
5 | 411414224440 |
6 | 32414024235 |
7 | 5113165463 |
oct | 1434224137 |
9 | 475705775 |
10 | 208742495 |
11 | a7914365 |
12 | 59aa807b |
13 | 34328690 |
14 | 1da1a4a3 |
15 | 134d4965 |
hex | c71285f |
208742495 has 16 divisors (see below), whose sum is σ = 270988032. Its totient is φ = 153446400.
The previous prime is 208742489. The next prime is 208742497. The reversal of 208742495 is 594247802.
208742495 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 208742495 - 210 = 208741471 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 (208742497) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7295 + ... + 21695.
It is an arithmetic number, because the mean of its divisors is an integer number (16936752).
Almost surely, 2208742495 is an apocalyptic number.
208742495 is a deficient number, since it is larger than the sum of its proper divisors (62245537).
208742495 is a wasteful number, since it uses less digits than its factorization.
208742495 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14642.
The product of its (nonzero) digits is 161280, while the sum is 41.
The square root of 208742495 is about 14447.9235532308. The cubic root of 208742495 is about 593.2033887955.
The spelling of 208742495 in words is "two hundred eight million, seven hundred forty-two thousand, four hundred ninety-five".
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