Base | Representation |
---|---|
bin | 1011011101110… |
… | …0000110000111 |
3 | 10100111002112222 |
4 | 2313130012013 |
5 | 44302244211 |
6 | 4434402555 |
7 | 1122510410 |
oct | 267340607 |
9 | 110432488 |
10 | 48087431 |
11 | 25164887 |
12 | 1413045b |
13 | 9c68a02 |
14 | 655a807 |
15 | 434d1db |
hex | 2ddc187 |
48087431 has 4 divisors (see below), whose sum is σ = 54957072. Its totient is φ = 41217792.
The previous prime is 48087401. The next prime is 48087433. The reversal of 48087431 is 13478084.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a de Polignac number, because none of the positive numbers 2k-48087431 is a prime.
It is a super-3 number, since 3×480874313 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 48087391 and 48087400.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (48087433) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3434810 + ... + 3434823.
It is an arithmetic number, because the mean of its divisors is an integer number (13739268).
Almost surely, 248087431 is an apocalyptic number.
48087431 is a deficient number, since it is larger than the sum of its proper divisors (6869641).
48087431 is an equidigital number, since it uses as much as digits as its factorization.
48087431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6869640.
The product of its (nonzero) digits is 21504, while the sum is 35.
The square root of 48087431 is about 6934.5101485253. The cubic root of 48087431 is about 363.6446412150.
The spelling of 48087431 in words is "forty-eight million, eighty-seven thousand, four hundred thirty-one".
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