Base | Representation |
---|---|
bin | 11000101010100… |
… | …10110111100110 |
3 | 112102100001122200 |
4 | 30111102313212 |
5 | 410432041102 |
6 | 32310435330 |
7 | 5061460644 |
oct | 1425226746 |
9 | 472301580 |
10 | 206908902 |
11 | a68817a2 |
12 | 59362b46 |
13 | 33b35c05 |
14 | 1d6a0194 |
15 | 1327151c |
hex | c552de6 |
206908902 has 12 divisors (see below), whose sum is σ = 448302660. Its totient is φ = 68969628.
The previous prime is 206908859. The next prime is 206908907. The reversal of 206908902 is 209809602.
It is a super-3 number, since 3×2069089023 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (206908907) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5747452 + ... + 5747487.
It is an arithmetic number, because the mean of its divisors is an integer number (37358555).
Almost surely, 2206908902 is an apocalyptic number.
206908902 is an abundant number, since it is smaller than the sum of its proper divisors (241393758).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
206908902 is a wasteful number, since it uses less digits than its factorization.
206908902 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11494947 (or 11494944 counting only the distinct ones).
The product of its (nonzero) digits is 15552, while the sum is 36.
The square root of 206908902 is about 14384.3283471979. The cubic root of 206908902 is about 591.4613796925.
It can be divided in two parts, 20690 and 8902, that added together give a palindrome (29592).
The spelling of 206908902 in words is "two hundred six million, nine hundred eight thousand, nine hundred two".
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