Base | Representation |
---|---|
bin | 111101011101110… |
… | …111110101010010 |
3 | 2122212110110202200 |
4 | 331131313311102 |
5 | 4102444203132 |
6 | 250155024030 |
7 | 34361255436 |
oct | 7535676522 |
9 | 2585413680 |
10 | 1031241042 |
11 | 48a121727 |
12 | 24943b016 |
13 | 135858000 |
14 | 9ad609c6 |
15 | 60802d7c |
hex | 3d777d52 |
1031241042 has 96 divisors (see below), whose sum is σ = 2456017200. Its totient is φ = 312668928.
The previous prime is 1031241037. The next prime is 1031241067. The reversal of 1031241042 is 2401421301.
It can be written as a sum of positive squares in 8 ways, for example, as 7177041 + 1024064001 = 2679^2 + 32001^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3519448 + ... + 3519740.
Almost surely, 21031241042 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1031241042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1228008600).
1031241042 is an abundant number, since it is smaller than the sum of its proper divisors (1424776158).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1031241042 is a wasteful number, since it uses less digits than its factorization.
1031241042 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 429 (or 400 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
The square root of 1031241042 is about 32112.9419704891. The cubic root of 1031241042 is about 1010.3070797791.
Adding to 1031241042 its reverse (2401421301), we get a palindrome (3432662343).
The spelling of 1031241042 in words is "one billion, thirty-one million, two hundred forty-one thousand, forty-two".
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