Base | Representation |
---|---|
bin | 101001011100111110… |
… | …0010110000011000111 |
3 | 22111202212212012021220 |
4 | 1102321330112003013 |
5 | 2424302322343311 |
6 | 104521133011423 |
7 | 6300654405660 |
oct | 1227174260307 |
9 | 274685765256 |
10 | 89018949831 |
11 | 34830970629 |
12 | 15304323b73 |
13 | 85187bb516 |
14 | 44468c4367 |
15 | 24b0190206 |
hex | 14b9f160c7 |
89018949831 has 64 divisors (see below), whose sum is σ = 142136294400. Its totient is φ = 48528574848.
The previous prime is 89018949809. The next prime is 89018949839. The reversal of 89018949831 is 13894981098.
It is not a de Polignac number, because 89018949831 - 210 = 89018948807 is a prime.
It is a super-2 number, since 2×890189498312 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (89018949839) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56376000 + ... + 56377578.
It is an arithmetic number, because the mean of its divisors is an integer number (2220879600).
Almost surely, 289018949831 is an apocalyptic number.
89018949831 is a deficient number, since it is larger than the sum of its proper divisors (53117344569).
89018949831 is an equidigital number, since it uses as much as digits as its factorization.
89018949831 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1753 (or 1679 counting only the distinct ones).
The product of its (nonzero) digits is 4478976, while the sum is 60.
The spelling of 89018949831 in words is "eighty-nine billion, eighteen million, nine hundred forty-nine thousand, eight hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •