Base | Representation |
---|---|
bin | 1100010010001001101… |
… | …1100000000100111010 |
3 | 202011201010010011210200 |
4 | 3010202123200010322 |
5 | 11424142421011442 |
6 | 240540223223030 |
7 | 21150355114341 |
oct | 3044233400472 |
9 | 664633104720 |
10 | 211031032122 |
11 | 81552574979 |
12 | 34a95a47a76 |
13 | 16b917c0511 |
14 | a2dd14cb58 |
15 | 5751ae334c |
hex | 31226e013a |
211031032122 has 24 divisors (see below), whose sum is σ = 457300793664. Its totient is φ = 70333386504.
The previous prime is 211031032097. The next prime is 211031032127. The reversal of 211031032122 is 221230130112.
211031032122 is a `hidden beast` number, since 2 + 1 + 10 + 310 + 321 + 22 = 666.
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 = 211031032095 and 211031032104.
It is not an unprimeable number, because it can be changed into a prime (211031032127) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 730608 + ... + 977675.
It is an arithmetic number, because the mean of its divisors is an integer number (19054199736).
Almost surely, 2211031032122 is an apocalyptic number.
211031032122 is an abundant number, since it is smaller than the sum of its proper divisors (246269761542).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
211031032122 is a wasteful number, since it uses less digits than its factorization.
211031032122 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1715154 (or 1715151 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
Adding to 211031032122 its reverse (221230130112), we get a palindrome (432261162234).
The spelling of 211031032122 in words is "two hundred eleven billion, thirty-one million, thirty-two thousand, one hundred twenty-two".
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