Base | Representation |
---|---|
bin | 1011111111101110100… |
… | …0011000001111000100 |
3 | 201200221102112021102100 |
4 | 2333323220120033010 |
5 | 11334030243113111 |
6 | 234401343312100 |
7 | 20613660460224 |
oct | 2777350301704 |
9 | 650842467370 |
10 | 206085129156 |
11 | 7a444756865 |
12 | 33b355ab630 |
13 | 16583c22b0a |
14 | 9d90330084 |
15 | 55627c5756 |
hex | 2ffba183c4 |
206085129156 has 81 divisors (see below), whose sum is σ = 539727066151. Its totient is φ = 66300826368.
The previous prime is 206085129149. The next prime is 206085129157. The reversal of 206085129156 is 651921580602.
The square root of 206085129156 is 453966.
It is a perfect power (a square), and thus also a powerful number.
206085129156 is a `hidden beast` number, since 2 + 0 + 608 + 5 + 1 + 29 + 15 + 6 = 666.
206085129156 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 5447556 + 206079681600 = 2334^2 + 453960^2 .
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (206085129157) by changing a digit.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 78988780 + ... + 78991388.
Almost surely, 2206085129156 is an apocalyptic number.
206085129156 is the 453966-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 206085129156
206085129156 is an abundant number, since it is smaller than the sum of its proper divisors (333641936995).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
206085129156 is an equidigital number, since it uses as much as digits as its factorization.
206085129156 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5286 (or 2643 counting only the distinct ones).
The product of its (nonzero) digits is 259200, while the sum is 45.
It can be divided in two parts, 206085 and 129156, that added together give a square (335241 = 5792).
The spelling of 206085129156 in words is "two hundred six billion, eighty-five million, one hundred twenty-nine thousand, one hundred fifty-six".
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