Base | Representation |
---|---|
bin | 111010110110… |
… | …1011011011110 |
3 | 2011001200202010 |
4 | 1311231123132 |
5 | 30344410201 |
6 | 3021212050 |
7 | 523164612 |
oct | 165553336 |
9 | 64050663 |
10 | 30856926 |
11 | 164662a1 |
12 | a401026 |
13 | 6515049 |
14 | 4153342 |
15 | 2a97bd6 |
hex | 1d6d6de |
30856926 has 16 divisors (see below), whose sum is σ = 62496000. Its totient is φ = 10155288.
The previous prime is 30856909. The next prime is 30856939. The reversal of 30856926 is 62965803.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32076 + ... + 33023.
It is an arithmetic number, because the mean of its divisors is an integer number (3906000).
Almost surely, 230856926 is an apocalyptic number.
30856926 is an abundant number, since it is smaller than the sum of its proper divisors (31639074).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30856926 is a wasteful number, since it uses less digits than its factorization.
30856926 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 65183.
The product of its (nonzero) digits is 77760, while the sum is 39.
The square root of 30856926 is about 5554.9010792272. The cubic root of 30856926 is about 313.6540403778.
It can be divided in two parts, 3085 and 6926, that added together give a triangular number (10011 = T141).
The spelling of 30856926 in words is "thirty million, eight hundred fifty-six thousand, nine hundred twenty-six".
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