Base | Representation |
---|---|
bin | 1011011110011… |
… | …0101111000101 |
3 | 10100120022100010 |
4 | 2313212233011 |
5 | 44310143023 |
6 | 4435340433 |
7 | 1123051440 |
oct | 267465705 |
9 | 110508303 |
10 | 48131013 |
11 | 251945a7 |
12 | 14151719 |
13 | 9c827b8 |
14 | 656c657 |
15 | 435b093 |
hex | 2de6bc5 |
48131013 has 16 divisors (see below), whose sum is σ = 74546816. Its totient is φ = 27051840.
The previous prime is 48131011. The next prime is 48131033. The reversal of 48131013 is 31013184.
It is not a de Polignac number, because 48131013 - 21 = 48131011 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (48131011) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17506 + ... + 20067.
It is an arithmetic number, because the mean of its divisors is an integer number (4659176).
Almost surely, 248131013 is an apocalyptic number.
It is an amenable number.
48131013 is a deficient number, since it is larger than the sum of its proper divisors (26415803).
48131013 is a wasteful number, since it uses less digits than its factorization.
48131013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 37644.
The product of its (nonzero) digits is 288, while the sum is 21.
The square root of 48131013 is about 6937.6518361763. The cubic root of 48131013 is about 363.7544660001.
Adding to 48131013 its reverse (31013184), we get a palindrome (79144197).
The spelling of 48131013 in words is "forty-eight million, one hundred thirty-one thousand, thirteen".
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