Base | Representation |
---|---|
bin | 1110000110110011011110… |
… | …10111011000101110110101 |
3 | 11001211111100122121112100110 |
4 | 13003121233113120232311 |
5 | 13031213202241311201 |
6 | 145550240350333233 |
7 | 6351062355212154 |
oct | 703315727305665 |
9 | 131744318545313 |
10 | 31020122213301 |
11 | 997a6183296a1 |
12 | 358baa81ba219 |
13 | 1440253502b80 |
14 | 79354c00d59b |
15 | 38bd87d9c6d6 |
hex | 1c366f5d8bb5 |
31020122213301 has 64 divisors (see below), whose sum is σ = 46556698890240. Its totient is φ = 18244975230720.
The previous prime is 31020122213293. The next prime is 31020122213329. The reversal of 31020122213301 is 10331222102013.
It is not a de Polignac number, because 31020122213301 - 23 = 31020122213293 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31020122213501) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 418413006 + ... + 418487136.
It is an arithmetic number, because the mean of its divisors is an integer number (727448420160).
Almost surely, 231020122213301 is an apocalyptic number.
It is an amenable number.
31020122213301 is a deficient number, since it is larger than the sum of its proper divisors (15536576676939).
31020122213301 is a wasteful number, since it uses less digits than its factorization.
31020122213301 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 79546.
The product of its (nonzero) digits is 432, while the sum is 21.
Adding to 31020122213301 its reverse (10331222102013), we get a palindrome (41351344315314).
The spelling of 31020122213301 in words is "thirty-one trillion, twenty billion, one hundred twenty-two million, two hundred thirteen thousand, three hundred one".
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