Base | Representation |
---|---|
bin | 100111001111001110… |
… | …100010110110100000 |
3 | 11000202012122222120122 |
4 | 213033032202312200 |
5 | 1142241114332034 |
6 | 31204354055412 |
7 | 3021025003136 |
oct | 471716426640 |
9 | 130665588518 |
10 | 42131402144 |
11 | 16960095017 |
12 | 81b987a568 |
13 | 3c85816670 |
14 | 20796ad756 |
15 | 1168ba362e |
hex | 9cf3a2da0 |
42131402144 has 48 divisors (see below), whose sum is σ = 90247654728. Its totient is φ = 19244777472.
The previous prime is 42131402119. The next prime is 42131402177. The reversal of 42131402144 is 44120413124.
42131402144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 12405504400 + 29725897744 = 111380^2 + 172412^2 .
It is a Harshad number since it is a multiple of its sum of digits (26).
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481697 + ... + 562400.
Almost surely, 242131402144 is an apocalyptic number.
It is an amenable number.
42131402144 is an abundant number, since it is smaller than the sum of its proper divisors (48116252584).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42131402144 is a wasteful number, since it uses less digits than its factorization.
42131402144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1044217 (or 1044209 counting only the distinct ones).
The product of its (nonzero) digits is 3072, while the sum is 26.
Adding to 42131402144 its reverse (44120413124), we get a palindrome (86251815268).
The spelling of 42131402144 in words is "forty-two billion, one hundred thirty-one million, four hundred two thousand, one hundred forty-four".
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