Base | Representation |
---|---|
bin | 111001011101… |
… | …1001100011111 |
3 | 2002200121022100 |
4 | 1302323030133 |
5 | 30203030004 |
6 | 2553420143 |
7 | 514034316 |
oct | 162731437 |
9 | 62617270 |
10 | 30126879 |
11 | 16007852 |
12 | a10a653 |
13 | 631a973 |
14 | 400327d |
15 | 29a1739 |
hex | 1cbb31f |
30126879 has 6 divisors (see below), whose sum is σ = 43516616. Its totient is φ = 20084580.
The previous prime is 30126869. The next prime is 30126893. The reversal of 30126879 is 97862103.
It is not a de Polignac number, because 30126879 - 25 = 30126847 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30126869) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1673707 + ... + 1673724.
Almost surely, 230126879 is an apocalyptic number.
30126879 is a deficient number, since it is larger than the sum of its proper divisors (13389737).
30126879 is a wasteful number, since it uses less digits than its factorization.
30126879 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3347437 (or 3347434 counting only the distinct ones).
The product of its (nonzero) digits is 18144, while the sum is 36.
The square root of 30126879 is about 5488.7957695655. The cubic root of 30126879 is about 311.1606817791.
The spelling of 30126879 in words is "thirty million, one hundred twenty-six thousand, eight hundred seventy-nine".
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