Base | Representation |
---|---|
bin | 1011011110001101011010101… |
… | …0100110000111011011010001 |
3 | 10220212022110012210020210200002 |
4 | 2313203112222212013123101 |
5 | 1321302321104211013011 |
6 | 11540531352334135345 |
7 | 332016323315302220 |
oct | 26743265246073321 |
9 | 3825273183223602 |
10 | 807272030172881 |
11 | 214249166548829 |
12 | 7665a889651555 |
13 | 2885a56c63a860 |
14 | 1034c263692cb7 |
15 | 634dee8863c3b |
hex | 2de35aa9876d1 |
807272030172881 has 16 divisors (see below), whose sum is σ = 993666231710208. Its totient is φ = 638656019668800.
The previous prime is 807272030172809. The next prime is 807272030172913. The reversal of 807272030172881 is 188271030272708.
It is a happy number.
It is a de Polignac number, because none of the positive numbers 2k-807272030172881 is a prime.
It is a super-2 number, since 2×8072720301728812 (a number of 31 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (807272030372881) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448454450 + ... + 450250971.
It is an arithmetic number, because the mean of its divisors is an integer number (62104139481888).
Almost surely, 2807272030172881 is an apocalyptic number.
It is an amenable number.
807272030172881 is a deficient number, since it is larger than the sum of its proper divisors (186394201537327).
807272030172881 is a wasteful number, since it uses less digits than its factorization.
807272030172881 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 898715312.
The product of its (nonzero) digits is 4214784, while the sum is 56.
The spelling of 807272030172881 in words is "eight hundred seven trillion, two hundred seventy-two billion, thirty million, one hundred seventy-two thousand, eight hundred eighty-one".
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