| Base | Representation |
|---|---|
| bin | 1011110101101011110… |
| … | …0100000100000111001 |
| 3 | 201102222112210122121100 |
| 4 | 2331122330200200321 |
| 5 | 11313020123233134 |
| 6 | 233234042002013 |
| 7 | 20460114206544 |
| oct | 2753274404071 |
| 9 | 642875718540 |
| 10 | 203389274169 |
| 11 | 79290a41034 |
| 12 | 335027a6309 |
| 13 | 1624455ac53 |
| 14 | 9bb629985b |
| 15 | 5455cad999 |
| hex | 2f5af20839 |
203389274169 has 9 divisors (see below), whose sum is σ = 293786461423. Its totient is φ = 135591947472.
The previous prime is 203389274161. The next prime is 203389274233. The reversal of 203389274169 is 961472983302.
The square root of 203389274169 is 450987.
It is a perfect power (a square), and thus also a powerful number.
203389274169 is a `hidden beast` number, since 20 + 338 + 9 + 274 + 16 + 9 = 666.
203389274169 is digitally balanced in base 2, 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 only one way, i.e., 172567960569 + 30821313600 = 415413^2 + 175560^2 .
It is a tau number, because it is divible by the number of its divisors (9).
It is not a de Polignac number, because 203389274169 - 23 = 203389274161 is a prime.
It is a super-2 number, since 2×2033892741692 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (203389274161) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1277797 + ... + 1428125.
Almost surely, 2203389274169 is an apocalyptic number.
203389274169 is the 450987-th square number.
203389274169 is the 225494-th centered octagonal number.
It is an amenable number.
203389274169 is a deficient number, since it is larger than the sum of its proper divisors (90397187254).
203389274169 is an frugal number, since it uses more digits than its factorization.
203389274169 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 300664 (or 150332 counting only the distinct ones).
The product of its (nonzero) digits is 3919104, while the sum is 54.
The spelling of 203389274169 in words is "two hundred three billion, three hundred eighty-nine million, two hundred seventy-four thousand, one hundred sixty-nine".
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