Base | Representation |
---|---|
bin | 111001011110… |
… | …1110001000100 |
3 | 2002201010202110 |
4 | 1302331301010 |
5 | 30203344122 |
6 | 2553541020 |
7 | 514110114 |
oct | 162756104 |
9 | 62633673 |
10 | 30137412 |
11 | 16014758 |
12 | a114770 |
13 | 63226b6 |
14 | 4007044 |
15 | 29a490c |
hex | 1cbdc44 |
30137412 has 12 divisors (see below), whose sum is σ = 70320656. Its totient is φ = 10045800.
The previous prime is 30137411. The next prime is 30137417. The reversal of 30137412 is 21473103.
It is a tau number, because it is divible by the number of its divisors (12).
It is not an unprimeable number, because it can be changed into a prime (30137411) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255714 + ... + 1255737.
Almost surely, 230137412 is an apocalyptic number.
It is an amenable number.
30137412 is an abundant number, since it is smaller than the sum of its proper divisors (40183244).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30137412 is a wasteful number, since it uses less digits than its factorization.
30137412 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2511458 (or 2511456 counting only the distinct ones).
The product of its (nonzero) digits is 504, while the sum is 21.
The square root of 30137412 is about 5489.7551857984. The cubic root of 30137412 is about 311.1969403593.
The spelling of 30137412 in words is "thirty million, one hundred thirty-seven thousand, four hundred twelve".
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