Base | Representation |
---|---|
bin | 111010100011… |
… | …0001011110100 |
3 | 2010202112020120 |
4 | 1311012023310 |
5 | 30324234210 |
6 | 3013531540 |
7 | 521625144 |
oct | 165061364 |
9 | 63675216 |
10 | 30696180 |
11 | 16366549 |
12 | a343bb0 |
13 | 6489b28 |
14 | 4110924 |
15 | 2a65270 |
hex | 1d462f4 |
30696180 has 24 divisors (see below), whose sum is σ = 85949472. Its totient is φ = 8185632.
The previous prime is 30696157. The next prime is 30696187. The reversal of 30696180 is 8169603.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30696187) 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 7 ways as a sum of consecutive naturals, for example, 255742 + ... + 255861.
It is an arithmetic number, because the mean of its divisors is an integer number (3581228).
Almost surely, 230696180 is an apocalyptic number.
30696180 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30696180 is an abundant number, since it is smaller than the sum of its proper divisors (55253292).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30696180 is a wasteful number, since it uses less digits than its factorization.
30696180 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 511615 (or 511613 counting only the distinct ones).
The product of its (nonzero) digits is 7776, while the sum is 33.
The square root of 30696180 is about 5540.4133419809. The cubic root of 30696180 is about 313.1084423179.
It can be divided in two parts, 30696 and 180, that added together give a triangular number (30876 = T248).
The spelling of 30696180 in words is "thirty million, six hundred ninety-six thousand, one hundred eighty".
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