Base | Representation |
---|---|
bin | 11000111001100… |
… | …10000000110000 |
3 | 112120000202210110 |
4 | 30130302000300 |
5 | 411432341342 |
6 | 32420501320 |
7 | 5114243505 |
oct | 1434620060 |
9 | 476022713 |
10 | 208871472 |
11 | a79a2257 |
12 | 59b4a840 |
13 | 343722b4 |
14 | 1da514ac |
15 | 1350cc9c |
hex | c732030 |
208871472 has 20 divisors (see below), whose sum is σ = 539584760. Its totient is φ = 69623808.
The previous prime is 208871471. The next prime is 208871479. The reversal of 208871472 is 274178802.
It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.
It is a self number, because there is not a number n which added to its sum of digits gives 208871472.
It is not an unprimeable number, because it can be changed into a prime (208871471) 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, 2175697 + ... + 2175792.
It is an arithmetic number, because the mean of its divisors is an integer number (26979238).
Almost surely, 2208871472 is an apocalyptic number.
It is an amenable number.
208871472 is an abundant number, since it is smaller than the sum of its proper divisors (330713288).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
208871472 is a wasteful number, since it uses less digits than its factorization.
208871472 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4351500 (or 4351494 counting only the distinct ones).
The product of its (nonzero) digits is 50176, while the sum is 39.
The square root of 208871472 is about 14452.3863773427. The cubic root of 208871472 is about 593.3255390411.
The spelling of 208871472 in words is "two hundred eight million, eight hundred seventy-one thousand, four hundred seventy-two".
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