Base | Representation |
---|---|
bin | 111001100100… |
… | …0011001101110 |
3 | 2002210100111212 |
4 | 1303020121232 |
5 | 30211242344 |
6 | 2554514422 |
7 | 514351115 |
oct | 163103156 |
9 | 62710455 |
10 | 30180974 |
11 | 1604445a |
12 | a135a12 |
13 | 6339485 |
14 | 4018c7c |
15 | 29b279e |
hex | 1cc866e |
30180974 has 24 divisors (see below), whose sum is σ = 47477808. Its totient is φ = 14385600.
The previous prime is 30180973. The next prime is 30180977. The reversal of 30180974 is 47908103.
It is a self number, because there is not a number n which added to its sum of digits gives 30180974.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30180971) 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 11 ways as a sum of consecutive naturals, for example, 199799 + ... + 199949.
It is an arithmetic number, because the mean of its divisors is an integer number (1978242).
Almost surely, 230180974 is an apocalyptic number.
30180974 is a deficient number, since it is larger than the sum of its proper divisors (17296834).
30180974 is a wasteful number, since it uses less digits than its factorization.
30180974 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 300 (or 263 counting only the distinct ones).
The product of its (nonzero) digits is 6048, while the sum is 32.
The square root of 30180974 is about 5493.7213252949. The cubic root of 30180974 is about 311.3468076261.
The spelling of 30180974 in words is "thirty million, one hundred eighty thousand, nine hundred seventy-four".
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