Base | Representation |
---|---|
bin | 111011001001… |
… | …1111000110100 |
3 | 2011100200211102 |
4 | 1312103320310 |
5 | 30414430302 |
6 | 3024425232 |
7 | 524422100 |
oct | 166237064 |
9 | 64320742 |
10 | 31014452 |
11 | 16563687 |
12 | a478218 |
13 | 656b961 |
14 | 4194900 |
15 | 2ac9702 |
hex | 1d93e34 |
31014452 has 36 divisors (see below), whose sum is σ = 63967680. Its totient is φ = 13117104.
The previous prime is 31014449. The next prime is 31014457. The reversal of 31014452 is 25441013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31014457) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14483 + ... + 16485.
It is an arithmetic number, because the mean of its divisors is an integer number (1776880).
Almost surely, 231014452 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 31014452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31983840).
31014452 is an abundant number, since it is smaller than the sum of its proper divisors (32953228).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31014452 is a wasteful number, since it uses less digits than its factorization.
31014452 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2100 (or 2091 counting only the distinct ones).
The product of its (nonzero) digits is 480, while the sum is 20.
The square root of 31014452 is about 5569.0620395180. The cubic root of 31014452 is about 314.1868740349.
Adding to 31014452 its reverse (25441013), we get a palindrome (56455465).
The spelling of 31014452 in words is "thirty-one million, fourteen thousand, four hundred fifty-two".
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