Base | Representation |
---|---|
bin | 11100111001101011… |
… | …010011100001100000 |
3 | 2222002200222111121012 |
4 | 130321223103201200 |
5 | 1002023300041134 |
6 | 22131152320052 |
7 | 2146004153642 |
oct | 347153234140 |
9 | 88080874535 |
10 | 31032424544 |
11 | 12184aa3960 |
12 | 6020843028 |
13 | 2c072459b4 |
14 | 17055d6892 |
15 | c195b26ce |
hex | 739ad3860 |
31032424544 has 48 divisors (see below), whose sum is σ = 68067288576. Its totient is φ = 13805520000.
The previous prime is 31032424541. The next prime is 31032424571. The reversal of 31032424544 is 44542423013.
It is a super-3 number, since 3×310324245443 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Harshad number since it is a multiple of its sum of digits (32).
It is a self number, because there is not a number n which added to its sum of digits gives 31032424544.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31032424541) 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, 921332 + ... + 954419.
It is an arithmetic number, because the mean of its divisors is an integer number (1418068512).
Almost surely, 231032424544 is an apocalyptic number.
It is an amenable number.
31032424544 is an abundant number, since it is smaller than the sum of its proper divisors (37034864032).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31032424544 is a wasteful number, since it uses less digits than its factorization.
31032424544 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1875819 (or 1875811 counting only the distinct ones).
The product of its (nonzero) digits is 46080, while the sum is 32.
Adding to 31032424544 its reverse (44542423013), we get a palindrome (75574847557).
The spelling of 31032424544 in words is "thirty-one billion, thirty-two million, four hundred twenty-four thousand, five hundred forty-four".
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