Base | Representation |
---|---|
bin | 11101010010110011… |
… | …100101000101010100 |
3 | 10000012002021222100121 |
4 | 131102303211011110 |
5 | 1003404212232040 |
6 | 22241052521324 |
7 | 2162313535636 |
oct | 352263450524 |
9 | 100162258317 |
10 | 31454024020 |
11 | 12380a81881 |
12 | 6119a80244 |
13 | 2c736aa743 |
14 | 17455c0a56 |
15 | c415e0c4a |
hex | 752ce5154 |
31454024020 has 24 divisors (see below), whose sum is σ = 66056959584. Its totient is φ = 12580941216.
The previous prime is 31454024011. The next prime is 31454024023. The reversal of 31454024020 is 2042045413.
It is a happy number.
It is a super-3 number, since 3×314540240203 (a number of 32 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31454024023) 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 7 ways as a sum of consecutive naturals, for example, 545407 + ... + 600313.
It is an arithmetic number, because the mean of its divisors is an integer number (2752373316).
Almost surely, 231454024020 is an apocalyptic number.
It is an amenable number.
31454024020 is an abundant number, since it is smaller than the sum of its proper divisors (34602935564).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31454024020 is a wasteful number, since it uses less digits than its factorization.
31454024020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 83559 (or 83557 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 25.
Adding to 31454024020 its reverse (2042045413), we get a palindrome (33496069433).
The spelling of 31454024020 in words is "thirty-one billion, four hundred fifty-four million, twenty-four thousand, twenty".
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