Base | Representation |
---|---|
bin | 10001100101010000101… |
… | …000110010100001100001 |
3 | 11021111200020020102111201 |
4 | 101211100220302201201 |
5 | 124243433100231121 |
6 | 2323020204041201 |
7 | 153202165220512 |
oct | 21452050624141 |
9 | 4244606212451 |
10 | 1208238680161 |
11 | 426458266477 |
12 | 1761b8833201 |
13 | 89c23408c96 |
14 | 4269c7a2a09 |
15 | 21668130e91 |
hex | 11950a32861 |
1208238680161 has 8 divisors (see below), whose sum is σ = 1208762987040. Its totient is φ = 1207714495008.
The previous prime is 1208238680153. The next prime is 1208238680189. The reversal of 1208238680161 is 1610868328021.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1208238680161 - 23 = 1208238680153 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1208238630161) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23638050 + ... + 23689108.
It is an arithmetic number, because the mean of its divisors is an integer number (151095373380).
Almost surely, 21208238680161 is an apocalyptic number.
It is an amenable number.
1208238680161 is a deficient number, since it is larger than the sum of its proper divisors (524306879).
1208238680161 is an equidigital number, since it uses as much as digits as its factorization.
1208238680161 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 60863.
The product of its (nonzero) digits is 221184, while the sum is 46.
The spelling of 1208238680161 in words is "one trillion, two hundred eight billion, two hundred thirty-eight million, six hundred eighty thousand, one hundred sixty-one".
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