Base | Representation |
---|---|
bin | 101111100010011110100011… |
… | …101000101101001101010001 |
3 | 1000102021121110120000020002100 |
4 | 233202132203220231031101 |
5 | 204401011113314442441 |
6 | 2020400505225311013 |
7 | 62016230216265012 |
oct | 5742364350551521 |
9 | 1012247416006070 |
10 | 209077458359121 |
11 | 60689285673100 |
12 | 1b548741935469 |
13 | 8c87bc5834861 |
14 | 398b58dab5009 |
15 | 19288b7a35cb6 |
hex | be27a3a2d351 |
209077458359121 has 81 divisors (see below), whose sum is σ = 340276948121019. Its totient is φ = 123611467636800.
The previous prime is 209077458359089. The next prime is 209077458359279. The reversal of 209077458359121 is 121953854770902.
It is a happy number.
The square root of 209077458359121 is 14459511.
It is a perfect power (a square), and thus also a powerful number.
209077458359121 is a `hidden beast` number, since 2 + 0 + 9 + 0 + 7 + 7 + 458 + 3 + 59 + 121 = 666.
It can be written as a sum of positive squares in only one way, i.e., 10074523573521 + 199002934785600 = 3174039^2 + 14106840^2 .
It is not a de Polignac number, because 209077458359121 - 25 = 209077458359089 is a prime.
It is not an unprimeable number, because it can be changed into a prime (209077458359321) by changing a digit.
It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 19563713040 + ... + 19563723726.
Almost surely, 2209077458359121 is an apocalyptic number.
209077458359121 is the 14459511-st square number.
209077458359121 is the 7229756-th centered octagonal number.
It is an amenable number.
209077458359121 is a deficient number, since it is larger than the sum of its proper divisors (131199489761898).
209077458359121 is an frugal number, since it uses more digits than its factorization.
209077458359121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21484 (or 10742 counting only the distinct ones).
The product of its (nonzero) digits is 38102400, while the sum is 63.
The spelling of 209077458359121 in words is "two hundred nine trillion, seventy-seven billion, four hundred fifty-eight million, three hundred fifty-nine thousand, one hundred twenty-one".
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