Base | Representation |
---|---|
bin | 11101000011101111… |
… | …100100000110110001 |
3 | 2222112110202221021122 |
4 | 131003233210012301 |
5 | 1002400014010301 |
6 | 22200024232025 |
7 | 2153124533462 |
oct | 350357440661 |
9 | 88473687248 |
10 | 31201313201 |
11 | 12261367463 |
12 | 606930b615 |
13 | 2c33229206 |
14 | 171dbdad69 |
15 | c2932381b |
hex | 743be41b1 |
31201313201 has 8 divisors (see below), whose sum is σ = 32853655200. Its totient is φ = 29549988000.
The previous prime is 31201313141. The next prime is 31201313233. The reversal of 31201313201 is 10231310213.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-31201313201 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 31201313201.
It is not an unprimeable number, because it can be changed into a prime (31201313261) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190796 + ... + 314333.
It is an arithmetic number, because the mean of its divisors is an integer number (4106706900).
Almost surely, 231201313201 is an apocalyptic number.
It is an amenable number.
31201313201 is a deficient number, since it is larger than the sum of its proper divisors (1652341999).
31201313201 is a wasteful number, since it uses less digits than its factorization.
31201313201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 508399.
The product of its (nonzero) digits is 108, while the sum is 17.
Adding to 31201313201 its reverse (10231310213), we get a palindrome (41432623414).
The spelling of 31201313201 in words is "thirty-one billion, two hundred one million, three hundred thirteen thousand, two hundred one".
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