Base | Representation |
---|---|
bin | 111001011111… |
… | …1011000100101 |
3 | 2002201110211211 |
4 | 1302333120211 |
5 | 30204102122 |
6 | 2554031421 |
7 | 514135330 |
oct | 162773045 |
9 | 62643754 |
10 | 30144037 |
11 | 16019730 |
12 | a118571 |
13 | 6325711 |
14 | 4009617 |
15 | 29a6877 |
hex | 1cbf625 |
30144037 has 16 divisors (see below), whose sum is σ = 38149632. Its totient is φ = 23134320.
The previous prime is 30144029. The next prime is 30144047. The reversal of 30144037 is 73044103.
It is a happy number.
It is not a de Polignac number, because 30144037 - 23 = 30144029 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30143999 and 30144017.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30144047) 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, 2238 + ... + 8080.
It is an arithmetic number, because the mean of its divisors is an integer number (2384352).
Almost surely, 230144037 is an apocalyptic number.
It is an amenable number.
30144037 is a deficient number, since it is larger than the sum of its proper divisors (8005595).
30144037 is a wasteful number, since it uses less digits than its factorization.
30144037 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5928.
The product of its (nonzero) digits is 1008, while the sum is 22.
The square root of 30144037 is about 5490.3585493117. The cubic root of 30144037 is about 311.2197417938.
The spelling of 30144037 in words is "thirty million, one hundred forty-four thousand, thirty-seven".
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