Base | Representation |
---|---|
bin | 1100000111101000101… |
… | …1010110010000001111 |
3 | 201220102101111201210200 |
4 | 3001322023112100033 |
5 | 11402402301202140 |
6 | 235352144504543 |
7 | 21020410500000 |
oct | 3017213262017 |
9 | 656371451720 |
10 | 208208225295 |
11 | 8033412a374 |
12 | 3442861b153 |
13 | 16831a39415 |
14 | a1122ad1a7 |
15 | 5638da1030 |
hex | 307a2d640f |
208208225295 has 144 divisors (see below), whose sum is σ = 428036836032. Its totient is φ = 93599815680.
The previous prime is 208208225287. The next prime is 208208225299. The reversal of 208208225295 is 592522802802.
208208225295 is a `hidden beast` number, since 20 + 8 + 20 + 82 + 2 + 529 + 5 = 666.
It is not a de Polignac number, because 208208225295 - 23 = 208208225287 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 208208225295.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (208208225299) by changing a digit.
It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 46132959 + ... + 46137471.
It is an arithmetic number, because the mean of its divisors is an integer number (2972478028).
Almost surely, 2208208225295 is an apocalyptic number.
208208225295 is an abundant number, since it is smaller than the sum of its proper divisors (219828610737).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
208208225295 is an frugal number, since it uses more digits than its factorization.
208208225295 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4620 (or 4589 counting only the distinct ones).
The product of its (nonzero) digits is 460800, while the sum is 45.
The spelling of 208208225295 in words is "two hundred eight billion, two hundred eight million, two hundred twenty-five thousand, two hundred ninety-five".
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