Base | Representation |
---|---|
bin | 111010100100… |
… | …0010110000000 |
3 | 2010202222101010 |
4 | 1311020112000 |
5 | 30330030044 |
6 | 3014040520 |
7 | 521663010 |
oct | 165102600 |
9 | 63688333 |
10 | 30705024 |
11 | 16372159 |
12 | a349140 |
13 | 6490b6c |
14 | 4113c40 |
15 | 2a67bb9 |
hex | 1d48580 |
30705024 has 64 divisors (see below), whose sum is σ = 93219840. Its totient is φ = 8772096.
The previous prime is 30705019. The next prime is 30705049. The reversal of 30705024 is 42050703.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (64).
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3024 + ... + 8399.
It is an arithmetic number, because the mean of its divisors is an integer number (1456560).
Almost surely, 230705024 is an apocalyptic number.
It is an amenable number.
30705024 is an abundant number, since it is smaller than the sum of its proper divisors (62514816).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30705024 is a wasteful number, since it uses less digits than its factorization.
30705024 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11447 (or 11435 counting only the distinct ones).
The product of its (nonzero) digits is 840, while the sum is 21.
The square root of 30705024 is about 5541.2114198973. The cubic root of 30705024 is about 313.1385097418.
Adding to 30705024 its reverse (42050703), we get a palindrome (72755727).
The spelling of 30705024 in words is "thirty million, seven hundred five thousand, twenty-four".
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