Base | Representation |
---|---|
bin | 11001000001101100… |
… | …000011010110100001 |
3 | 2120100202011110221002 |
4 | 121001230003112201 |
5 | 420013144332011 |
6 | 20202245241345 |
7 | 1640624063612 |
oct | 310154032641 |
9 | 76322143832 |
10 | 26871870881 |
11 | 1043a51a359 |
12 | 525b403255 |
13 | 26c329b81b |
14 | 142cc0bc09 |
15 | a741c5c3b |
hex | 641b035a1 |
26871870881 has 8 divisors (see below), whose sum is σ = 26931086784. Its totient is φ = 26812691280.
The previous prime is 26871870869. The next prime is 26871870929. The reversal of 26871870881 is 18807817862.
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 26871870881 - 214 = 26871854497 is a prime.
It is a super-2 number, since 2×268718708812 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (26871870281) 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, 1901066 + ... + 1915148.
It is an arithmetic number, because the mean of its divisors is an integer number (3366385848).
Almost surely, 226871870881 is an apocalyptic number.
It is an amenable number.
26871870881 is a deficient number, since it is larger than the sum of its proper divisors (59215903).
26871870881 is a wasteful number, since it uses less digits than its factorization.
26871870881 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18151.
The product of its (nonzero) digits is 2408448, while the sum is 56.
The spelling of 26871870881 in words is "twenty-six billion, eight hundred seventy-one million, eight hundred seventy thousand, eight hundred eighty-one".
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