Base | Representation |
---|---|
bin | 11101011000000100… |
… | …010111100001111010 |
3 | 10000102020102102101000 |
4 | 131120010113201322 |
5 | 1004044312423114 |
6 | 22253525105430 |
7 | 2164435135323 |
oct | 353004274172 |
9 | 100366372330 |
10 | 31542311034 |
11 | 124168a3153 |
12 | 6143558276 |
13 | 2c88a7ca90 |
14 | 175320344a |
15 | c4922ee09 |
hex | 75811787a |
31542311034 has 64 divisors (see below), whose sum is σ = 75665882880. Its totient is φ = 9682182720.
The previous prime is 31542311023. The next prime is 31542311051. The reversal of 31542311034 is 43011324513.
It is a happy number.
31542311034 is a `hidden beast` number, since 3 + 1 + 542 + 3 + 110 + 3 + 4 = 666.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a junction number, because it is equal to n+sod(n) for n = 31542310989 and 31542311007.
It is an unprimeable number.
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 31 ways as a sum of consecutive naturals, for example, 242179 + ... + 348905.
It is an arithmetic number, because the mean of its divisors is an integer number (1182279420).
Almost surely, 231542311034 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 31542311034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37832941440).
31542311034 is an abundant number, since it is smaller than the sum of its proper divisors (44123571846).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31542311034 is a wasteful number, since it uses less digits than its factorization.
31542311034 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 107172 (or 107166 counting only the distinct ones).
The product of its (nonzero) digits is 4320, while the sum is 27.
Adding to 31542311034 its reverse (43011324513), we get a palindrome (74553635547).
The spelling of 31542311034 in words is "thirty-one billion, five hundred forty-two million, three hundred eleven thousand, thirty-four".
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