Base | Representation |
---|---|
bin | 111001011000… |
… | …1010100100110 |
3 | 2002121112211112 |
4 | 1302301110212 |
5 | 30200231223 |
6 | 2552505022 |
7 | 513505364 |
oct | 162612446 |
9 | 62545745 |
10 | 30086438 |
11 | 15a8a428 |
12 | a0ab172 |
13 | 6305435 |
14 | 3dd2634 |
15 | 2994778 |
hex | 1cb1526 |
30086438 has 8 divisors (see below), whose sum is σ = 47091888. Its totient is φ = 14389144.
The previous prime is 30086437. The next prime is 30086467. The reversal of 30086438 is 83468003.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30086437) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326981 + ... + 327072.
It is an arithmetic number, because the mean of its divisors is an integer number (5886486).
Almost surely, 230086438 is an apocalyptic number.
30086438 is a deficient number, since it is larger than the sum of its proper divisors (17005450).
30086438 is a wasteful number, since it uses less digits than its factorization.
30086438 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 654078.
The product of its (nonzero) digits is 13824, while the sum is 32.
The square root of 30086438 is about 5485.1105731790. The cubic root of 30086438 is about 311.0213899536.
The spelling of 30086438 in words is "thirty million, eighty-six thousand, four hundred thirty-eight".
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