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313211010222 = 233112272322869
BaseRepresentation
bin1001000111011001101…
…01001011110010101110
31002221110012202212211000
410203230311023302232
520112424004311342
6355515342541130
731425442442205
oct4435465136256
91087405685730
10313211010222
111109174a4870
12508518977a6
13236c6b41216
141123391823c
1582323e244c
hex48ecd4bcae

313211010222 has 64 divisors (see below), whose sum is σ = 762644678400. Its totient is φ = 94494270240.

The previous prime is 313211010187. The next prime is 313211010223. The reversal of 313211010222 is 222010112313.

It is a super-2 number, since 2×3132110102222 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 313211010195 and 313211010204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313211010223) 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, 1026597 + ... + 1296272.

It is an arithmetic number, because the mean of its divisors is an integer number (11916323100).

Almost surely, 2313211010222 is an apocalyptic number.

313211010222 is an abundant number, since it is smaller than the sum of its proper divisors (449433668178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313211010222 is a wasteful number, since it uses less digits than its factorization.

313211010222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323118 (or 2323112 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 313211010222 its reverse (222010112313), we get a palindrome (535221122535).

The spelling of 313211010222 in words is "three hundred thirteen billion, two hundred eleven million, ten thousand, two hundred twenty-two".

Divisors: 1 2 3 6 9 11 18 22 27 33 54 66 99 198 227 297 454 594 681 1362 2043 2497 4086 4994 6129 7491 12258 14982 22473 44946 67419 134838 2322869 4645738 6968607 13937214 20905821 25551559 41811642 51103118 62717463 76654677 125434926 153309354 229964031 459928062 527291263 689892093 1054582526 1379784186 1581873789 3163747578 4745621367 5800203893 9491242734 11600407786 14236864101 17400611679 28473728202 34801223358 52201835037 104403670074 156605505111 313211010222