Base | Representation |
---|---|
bin | 11100111000010110… |
… | …100100010110010110 |
3 | 2222001011011221122120 |
4 | 130320112210112112 |
5 | 1002002103224342 |
6 | 22125040240410 |
7 | 2145314306034 |
oct | 347026442626 |
9 | 88034157576 |
10 | 31010211222 |
11 | 12173501741 |
12 | 6015310106 |
13 | 2c02769013 |
14 | 1702693554 |
15 | c17675aec |
hex | 7385a4596 |
31010211222 has 16 divisors (see below), whose sum is σ = 62870018160. Its totient is φ = 10195137792.
The previous prime is 31010211161. The next prime is 31010211283. The reversal of 31010211222 is 22211201013.
It is an interprime number because it is at equal distance from previous prime (31010211161) and next prime (31010211283).
It is a super-3 number, since 3×310102112223 (a number of 32 digits) contains 333 as substring.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35399347 + ... + 35400222.
It is an arithmetic number, because the mean of its divisors is an integer number (3929376135).
Almost surely, 231010211222 is an apocalyptic number.
31010211222 is an abundant number, since it is smaller than the sum of its proper divisors (31859806938).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31010211222 is a wasteful number, since it uses less digits than its factorization.
31010211222 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 70799647.
The product of its (nonzero) digits is 48, while the sum is 15.
Adding to 31010211222 its reverse (22211201013), we get a palindrome (53221412235).
The spelling of 31010211222 in words is "thirty-one billion, ten million, two hundred eleven thousand, two hundred twenty-two".
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