Base | Representation |
---|---|
bin | 11000110100000… |
… | …01011000101000 |
3 | 112111200000101111 |
4 | 30122001120220 |
5 | 411241214013 |
6 | 32353200104 |
7 | 5105141335 |
oct | 1432013050 |
9 | 474600344 |
10 | 208148008 |
11 | a7548752 |
12 | 59860034 |
13 | 3417ac03 |
14 | 1d90398c |
15 | 1341873d |
hex | c681628 |
208148008 has 8 divisors (see below), whose sum is σ = 390277530. Its totient is φ = 104074000.
The previous prime is 208147997. The next prime is 208148011. The reversal of 208148008 is 800841802.
It can be written as a sum of positive squares in only one way, i.e., 148888804 + 59259204 = 12202^2 + 7698^2 .
It is a tau number, because it is divible by the number of its divisors (8).
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13009243 + ... + 13009258.
Almost surely, 2208148008 is an apocalyptic number.
It is an amenable number.
208148008 is a deficient number, since it is larger than the sum of its proper divisors (182129522).
208148008 is a wasteful number, since it uses less digits than its factorization.
208148008 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26018507 (or 26018503 counting only the distinct ones).
The product of its (nonzero) digits is 4096, while the sum is 31.
The square root of 208148008 is about 14427.3354435253. The cubic root of 208148008 is about 592.6397166163.
The spelling of 208148008 in words is "two hundred eight million, one hundred forty-eight thousand, eight".
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