Base | Representation |
---|---|
bin | 111010001001… |
… | …1110001001010 |
3 | 2010101000222012 |
4 | 1310103301022 |
5 | 30301132144 |
6 | 3005255522 |
7 | 520105115 |
oct | 164236112 |
9 | 63330865 |
10 | 30489674 |
11 | 16235386 |
12 | a2645a2 |
13 | 6416b37 |
14 | 409957c |
15 | 2a23e9e |
hex | 1d13c4a |
30489674 has 8 divisors (see below), whose sum is σ = 47723040. Its totient is φ = 14581996.
The previous prime is 30489673. The next prime is 30489703. The reversal of 30489674 is 47698403.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (30489671) 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, 331364 + ... + 331455.
It is an arithmetic number, because the mean of its divisors is an integer number (5965380).
Almost surely, 230489674 is an apocalyptic number.
30489674 is a deficient number, since it is larger than the sum of its proper divisors (17233366).
30489674 is a wasteful number, since it uses less digits than its factorization.
30489674 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 662844.
The product of its (nonzero) digits is 145152, while the sum is 41.
The square root of 30489674 is about 5521.7455573396. The cubic root of 30489674 is about 312.4047248754.
The spelling of 30489674 in words is "thirty million, four hundred eighty-nine thousand, six hundred seventy-four".
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