Base | Representation |
---|---|
bin | 111010111000… |
… | …0011011111100 |
3 | 2011002022122100 |
4 | 1311300123330 |
5 | 30400303434 |
6 | 3021345100 |
7 | 523245540 |
oct | 165603374 |
9 | 64068570 |
10 | 30869244 |
11 | 1647457a |
12 | a408190 |
13 | 651a833 |
14 | 4157a20 |
15 | 2a9b699 |
hex | 1d706fc |
30869244 has 36 divisors (see below), whose sum is σ = 89178544. Its totient is φ = 8819712.
The previous prime is 30869239. The next prime is 30869257. The reversal of 30869244 is 44296803.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (36).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 30869199 and 30869208.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60997 + ... + 61500.
Almost surely, 230869244 is an apocalyptic number.
It is an amenable number.
30869244 is an abundant number, since it is smaller than the sum of its proper divisors (58309300).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30869244 is a wasteful number, since it uses less digits than its factorization.
30869244 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 122514 (or 122509 counting only the distinct ones).
The product of its (nonzero) digits is 41472, while the sum is 36.
The square root of 30869244 is about 5556.0097192140. The cubic root of 30869244 is about 313.6957714354.
It can be divided in two parts, 30869 and 244, that added together give a palindrome (31113).
The spelling of 30869244 in words is "thirty million, eight hundred sixty-nine thousand, two hundred forty-four".
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