Base | Representation |
---|---|
bin | 1011101010010… |
… | …1100110111111 |
3 | 10102001000210100 |
4 | 2322211212333 |
5 | 100010202311 |
6 | 4504212143 |
7 | 1132516002 |
oct | 272454677 |
9 | 112030710 |
10 | 48912831 |
11 | 25678a30 |
12 | 1446a053 |
13 | a197606 |
14 | 66d3539 |
15 | 4462a56 |
hex | 2ea59bf |
48912831 has 12 divisors (see below), whose sum is σ = 77074920. Its totient is φ = 29644080.
The previous prime is 48912817. The next prime is 48912839. The reversal of 48912831 is 13821984.
It is not a de Polignac number, because 48912831 - 26 = 48912767 is a prime.
It is a super-2 number, since 2×489128312 = 4784930072869122, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (48912839) by changing a digit.
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 11 ways as a sum of consecutive naturals, for example, 246936 + ... + 247133.
It is an arithmetic number, because the mean of its divisors is an integer number (6422910).
Almost surely, 248912831 is an apocalyptic number.
48912831 is a deficient number, since it is larger than the sum of its proper divisors (28162089).
48912831 is a wasteful number, since it uses less digits than its factorization.
48912831 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 494086 (or 494083 counting only the distinct ones).
The product of its digits is 13824, while the sum is 36.
The square root of 48912831 is about 6993.7708712825. The cubic root of 48912831 is about 365.7134503518.
The spelling of 48912831 in words is "forty-eight million, nine hundred twelve thousand, eight hundred thirty-one".
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