Base | Representation |
---|---|
bin | 111001100100… |
… | …1001011001001 |
3 | 2002210111212000 |
4 | 1303021023021 |
5 | 30211343022 |
6 | 2554541213 |
7 | 514363254 |
oct | 163111311 |
9 | 62714760 |
10 | 30184137 |
11 | 16046875 |
12 | a137809 |
13 | 633aa49 |
14 | 401a09b |
15 | 29b36ac |
hex | 1cc92c9 |
30184137 has 8 divisors (see below), whose sum is σ = 44717280. Its totient is φ = 20122740.
The previous prime is 30184123. The next prime is 30184181. The reversal of 30184137 is 73148103.
It is not a de Polignac number, because 30184137 - 27 = 30184009 is a prime.
It is a super-2 number, since 2×301841372 = 1822164252869538, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1117931 = 30184137 / (3 + 0 + 1 + 8 + 4 + 1 + 3 + 7).
It is a self number, because there is not a number n which added to its sum of digits gives 30184137.
It is not an unprimeable number, because it can be changed into a prime (30184117) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558939 + ... + 558992.
It is an arithmetic number, because the mean of its divisors is an integer number (5589660).
Almost surely, 230184137 is an apocalyptic number.
It is an amenable number.
30184137 is a deficient number, since it is larger than the sum of its proper divisors (14533143).
30184137 is a wasteful number, since it uses less digits than its factorization.
30184137 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1117940 (or 1117934 counting only the distinct ones).
The product of its (nonzero) digits is 2016, while the sum is 27.
The square root of 30184137 is about 5494.0091918380. The cubic root of 30184137 is about 311.3576837447.
The spelling of 30184137 in words is "thirty million, one hundred eighty-four thousand, one hundred thirty-seven".
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