Base | Representation |
---|---|
bin | 101101011101010010… |
… | …101010001011010010 |
3 | 11122222122021101120101 |
4 | 231131102222023102 |
5 | 1244430303001230 |
6 | 34231203403014 |
7 | 3345360363622 |
oct | 553522521322 |
9 | 148878241511 |
10 | 48809812690 |
11 | 19777959781 |
12 | 956238346a |
13 | 47ab302a92 |
14 | 2510636882 |
15 | 140a146aca |
hex | b5d4aa2d2 |
48809812690 has 32 divisors (see below), whose sum is σ = 93187765440. Its totient is φ = 18355147200.
The previous prime is 48809812673. The next prime is 48809812693. The reversal of 48809812690 is 9621890884.
48809812690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×488098126902 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (48809812693) 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, 955621 + ... + 1005400.
It is an arithmetic number, because the mean of its divisors is an integer number (2912117670).
Almost surely, 248809812690 is an apocalyptic number.
48809812690 is a deficient number, since it is larger than the sum of its proper divisors (44377952750).
48809812690 is a wasteful number, since it uses less digits than its factorization.
48809812690 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1961178.
The product of its (nonzero) digits is 1990656, while the sum is 55.
The spelling of 48809812690 in words is "forty-eight billion, eight hundred nine million, eight hundred twelve thousand, six hundred ninety".
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