Base | Representation |
---|---|
bin | 1110001100011010101111… |
… | …10101111111111011010101 |
3 | 11002111221012201021212002102 |
4 | 13012031113311333323111 |
5 | 13042343211241111201 |
6 | 150215015454451445 |
7 | 6401031156624530 |
oct | 706152765777325 |
9 | 132457181255072 |
10 | 31213001113301 |
11 | 9a443a5452a87 |
12 | 3601356b03b85 |
13 | 14554b13c85b7 |
14 | 79ca0844da17 |
15 | 391dc608626b |
hex | 1c6357d7fed5 |
31213001113301 has 32 divisors (see below), whose sum is σ = 38456377681920. Its totient is φ = 24740079998400.
The previous prime is 31213001113267. The next prime is 31213001113309. The reversal of 31213001113301 is 10331110031213.
It is not a de Polignac number, because 31213001113301 - 26 = 31213001113237 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31213001113309) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13621481 + ... + 15747086.
It is an arithmetic number, because the mean of its divisors is an integer number (1201761802560).
Almost surely, 231213001113301 is an apocalyptic number.
It is an amenable number.
31213001113301 is a deficient number, since it is larger than the sum of its proper divisors (7243376568619).
31213001113301 is a wasteful number, since it uses less digits than its factorization.
31213001113301 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29368785.
The product of its (nonzero) digits is 162, while the sum is 20.
Adding to 31213001113301 its reverse (10331110031213), we get a palindrome (41544111144514).
The spelling of 31213001113301 in words is "thirty-one trillion, two hundred thirteen billion, one million, one hundred thirteen thousand, three hundred one".
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