Base | Representation |
---|---|
bin | 11100001101011000… |
… | …010100011010011000 |
3 | 2220011220120022201000 |
4 | 130031120110122120 |
5 | 444013021444234 |
6 | 21525323425000 |
7 | 2121411243102 |
oct | 341530243230 |
9 | 86156508630 |
10 | 30289249944 |
11 | 11933545878 |
12 | 5a53985160 |
13 | 2b1929ab05 |
14 | 1674a20572 |
15 | bc4212899 |
hex | 70d614698 |
30289249944 has 64 divisors (see below), whose sum is σ = 84155529600. Its totient is φ = 10094169888.
The previous prime is 30289249927. The next prime is 30289249957. The reversal of 30289249944 is 44994298203.
30289249944 is a `hidden beast` number, since 3 + 0 + 28 + 92 + 499 + 44 = 666.
It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1162807 + ... + 1188569.
It is an arithmetic number, because the mean of its divisors is an integer number (1314930150).
Almost surely, 230289249944 is an apocalyptic number.
It is an amenable number.
30289249944 is an abundant number, since it is smaller than the sum of its proper divisors (53866279656).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30289249944 is a wasteful number, since it uses less digits than its factorization.
30289249944 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 31221 (or 31211 counting only the distinct ones).
The product of its (nonzero) digits is 4478976, while the sum is 54.
It can be divided in two parts, 302892 and 49944, that added together give a square (352836 = 5942).
The spelling of 30289249944 in words is "thirty billion, two hundred eighty-nine million, two hundred forty-nine thousand, nine hundred forty-four".
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