Base | Representation |
---|---|
bin | 11100101111001110… |
… | …001000010101111001 |
3 | 2221122110220020102011 |
4 | 130233032020111321 |
5 | 1001143343120114 |
6 | 22101524405521 |
7 | 2141444131660 |
oct | 345716102571 |
9 | 87573806364 |
10 | 30857004409 |
11 | 120a4a7a140 |
12 | 5b91b468a1 |
13 | 2ba9ab65ba |
14 | 16ca1b1dd7 |
15 | c08eb11c4 |
hex | 72f388579 |
30857004409 has 32 divisors (see below), whose sum is σ = 39766597632. Its totient is φ = 23236848000.
The previous prime is 30857004389. The next prime is 30857004413. The reversal of 30857004409 is 90440075803.
It is a cyclic number.
It is not a de Polignac number, because 30857004409 - 219 = 30856480121 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30857004439) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1808014 + ... + 1825000.
It is an arithmetic number, because the mean of its divisors is an integer number (1242706176).
Almost surely, 230857004409 is an apocalyptic number.
It is an amenable number.
30857004409 is a deficient number, since it is larger than the sum of its proper divisors (8909593223).
30857004409 is a wasteful number, since it uses less digits than its factorization.
30857004409 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17797.
The product of its (nonzero) digits is 120960, while the sum is 40.
The spelling of 30857004409 in words is "thirty billion, eight hundred fifty-seven million, four thousand, four hundred nine".
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