Base | Representation |
---|---|
bin | 11101010001111110… |
… | …111001000101001101 |
3 | 10000011010022021020110 |
4 | 131101332321011031 |
5 | 1003342143243201 |
6 | 22235440510233 |
7 | 2162055252351 |
oct | 352176710515 |
9 | 100133267213 |
10 | 31440212301 |
11 | 123741a8933 |
12 | 611531b379 |
13 | 2c70882c24 |
14 | 1743827461 |
15 | c402b36d6 |
hex | 751fb914d |
31440212301 has 8 divisors (see below), whose sum is σ = 44386182144. Its totient is φ = 19727192000.
The previous prime is 31440212249. The next prime is 31440212311. The reversal of 31440212301 is 10321204413.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 31440212301 - 213 = 31440204109 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31440212311) 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, 308237325 + ... + 308237426.
It is an arithmetic number, because the mean of its divisors is an integer number (5548272768).
Almost surely, 231440212301 is an apocalyptic number.
It is an amenable number.
31440212301 is a deficient number, since it is larger than the sum of its proper divisors (12945969843).
31440212301 is a wasteful number, since it uses less digits than its factorization.
31440212301 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 616474771.
The product of its (nonzero) digits is 576, while the sum is 21.
Adding to 31440212301 its reverse (10321204413), we get a palindrome (41761416714).
The spelling of 31440212301 in words is "thirty-one billion, four hundred forty million, two hundred twelve thousand, three hundred one".
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