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31010222122 = 2118316982597
BaseRepresentation
bin11100111000010110…
…100111000000101010
32222001011012111121021
4130320112213000222
51002002104101442
622125040403054
72145314352565
oct347026470052
988034174537
1031010222122
1112173509950
12601531648a
132c02770c79
1417026974dc
15c17678e67
hex7385a702a

31010222122 has 16 divisors (see below), whose sum is σ = 51355376352. Its totient is φ = 13925728720.

The previous prime is 31010222119. The next prime is 31010222171. The reversal of 31010222122 is 22122201013.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31010222096 and 31010222105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8489473 + ... + 8493124.

It is an arithmetic number, because the mean of its divisors is an integer number (3209711022).

Almost surely, 231010222122 is an apocalyptic number.

31010222122 is a deficient number, since it is larger than the sum of its proper divisors (20345154230).

31010222122 is a wasteful number, since it uses less digits than its factorization.

31010222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16982693.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 31010222122 its reverse (22122201013), we get a palindrome (53132423135).

The spelling of 31010222122 in words is "thirty-one billion, ten million, two hundred twenty-two thousand, one hundred twenty-two".

Divisors: 1 2 11 22 83 166 913 1826 16982597 33965194 186808567 373617134 1409555551 2819111102 15505111061 31010222122