Base | Representation |
---|---|
bin | 111010001100… |
… | …1010011011110 |
3 | 2010102012002001 |
4 | 1310121103132 |
5 | 30302343400 |
6 | 3005552514 |
7 | 520231201 |
oct | 164312336 |
9 | 63365061 |
10 | 30512350 |
11 | 16250420 |
12 | a27573a |
13 | 642425b |
14 | 40a3938 |
15 | 2a2aa6a |
hex | 1d194de |
30512350 has 48 divisors (see below), whose sum is σ = 64080720. Its totient is φ = 10707200.
The previous prime is 30512333. The next prime is 30512357. The reversal of 30512350 is 5321503.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30512357) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14994 + ... + 16906.
It is an arithmetic number, because the mean of its divisors is an integer number (1335015).
Almost surely, 230512350 is an apocalyptic number.
30512350 is an abundant number, since it is smaller than the sum of its proper divisors (33568370).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30512350 is a wasteful number, since it uses less digits than its factorization.
30512350 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1965 (or 1960 counting only the distinct ones).
The product of its (nonzero) digits is 450, while the sum is 19.
The square root of 30512350 is about 5523.7985118938. The cubic root of 30512350 is about 312.4821536475.
Adding to 30512350 its reverse (5321503), we get a palindrome (35833853).
The spelling of 30512350 in words is "thirty million, five hundred twelve thousand, three hundred fifty".
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