Base | Representation |
---|---|
bin | 11100010111010000… |
… | …100110110101110101 |
3 | 2220121110110022122011 |
4 | 130113100212311311 |
5 | 444332440003222 |
6 | 21554004204221 |
7 | 2125463142511 |
oct | 342720466565 |
9 | 86543408564 |
10 | 30455000437 |
11 | 11a09065654 |
12 | 5a9b399671 |
13 | 2b44722b24 |
14 | 168ca49141 |
15 | bd3a53c77 |
hex | 717426d75 |
30455000437 has 4 divisors (see below), whose sum is σ = 30509677836. Its totient is φ = 30400323040.
The previous prime is 30455000423. The next prime is 30455000447. The reversal of 30455000437 is 73400055403.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 10184644561 + 20270355876 = 100919^2 + 142374^2 .
It is a cyclic number.
It is not a de Polignac number, because 30455000437 - 27 = 30455000309 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30455000399 and 30455000408.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30455000417) 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 3 ways as a sum of consecutive naturals, for example, 27337864 + ... + 27338977.
It is an arithmetic number, because the mean of its divisors is an integer number (7627419459).
Almost surely, 230455000437 is an apocalyptic number.
It is an amenable number.
30455000437 is a deficient number, since it is larger than the sum of its proper divisors (54677399).
30455000437 is an equidigital number, since it uses as much as digits as its factorization.
30455000437 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 54677398.
The product of its (nonzero) digits is 25200, while the sum is 31.
The spelling of 30455000437 in words is "thirty billion, four hundred fifty-five million, four hundred thirty-seven", and thus it is an aban number.
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