Base | Representation |
---|---|
bin | 100001111011001110… |
… | …0010010110010110001 |
3 | 20222001022211011210012 |
4 | 1003312130102302301 |
5 | 2143201121321011 |
6 | 53245123544305 |
7 | 5156251352330 |
oct | 1036634226261 |
9 | 228038734705 |
10 | 72854088881 |
11 | 28996263312 |
12 | 1215282b095 |
13 | 6b40832142 |
14 | 3751ab9d17 |
15 | 1d65e81a8b |
hex | 10f6712cb1 |
72854088881 has 16 divisors (see below), whose sum is σ = 84280043904. Its totient is φ = 61682961024.
The previous prime is 72854088871. The next prime is 72854088883. The reversal of 72854088881 is 18888045827.
It is a cyclic number.
It is not a de Polignac number, because 72854088881 - 218 = 72853826737 is a prime.
It is a super-2 number, since 2×728540888812 (a number of 23 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 72854088881.
It is not an unprimeable number, because it can be changed into a prime (72854088883) 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, 6150941 + ... + 6162773.
It is an arithmetic number, because the mean of its divisors is an integer number (5267502744).
Almost surely, 272854088881 is an apocalyptic number.
It is an amenable number.
72854088881 is a deficient number, since it is larger than the sum of its proper divisors (11425955023).
72854088881 is a wasteful number, since it uses less digits than its factorization.
72854088881 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22520.
The product of its (nonzero) digits is 9175040, while the sum is 59.
The spelling of 72854088881 in words is "seventy-two billion, eight hundred fifty-four million, eighty-eight thousand, eight hundred eighty-one".
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