Base | Representation |
---|---|
bin | 11011111111000001… |
… | …110011001011011111 |
3 | 2212120010111012201111 |
4 | 123333001303023133 |
5 | 443014401400011 |
6 | 21445402522451 |
7 | 2112425513032 |
oct | 337701631337 |
9 | 85503435644 |
10 | 30048465631 |
11 | 1181a636a78 |
12 | 59a7206427 |
13 | 2aab433ca2 |
14 | 1650a63019 |
15 | baceee121 |
hex | 6ff0732df |
30048465631 has 4 divisors (see below), whose sum is σ = 30094482312. Its totient is φ = 30002448952.
The previous prime is 30048465607. The next prime is 30048465677. The reversal of 30048465631 is 13656484003.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13656484003 = 211 ⋅64722673.
It is a cyclic number.
It is not a de Polignac number, because 30048465631 - 25 = 30048465599 is a prime.
It is a super-2 number, since 2×300484656312 (a number of 22 digits) contains 22 as substring.
It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30048465131) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23007361 + ... + 23008666.
It is an arithmetic number, because the mean of its divisors is an integer number (7523620578).
Almost surely, 230048465631 is an apocalyptic number.
30048465631 is a deficient number, since it is larger than the sum of its proper divisors (46016681).
30048465631 is an equidigital number, since it uses as much as digits as its factorization.
30048465631 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 46016680.
The product of its (nonzero) digits is 207360, while the sum is 40.
The spelling of 30048465631 in words is "thirty billion, forty-eight million, four hundred sixty-five thousand, six hundred thirty-one".
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