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834112161 = 3432092
BaseRepresentation
bin110001101101111…
…000101010100001
32011010112021210000
4301231320222201
53202013042121
6214433530213
726445556611
oct6155705241
92133467700
10834112161
1139891a8a3
121b3413969
13103a677bc
147cac8a41
154d364526
hex31b78aa1

834112161 has 15 divisors (see below), whose sum is σ = 1246407811. Its totient is φ = 555901488.

The previous prime is 834112129. The next prime is 834112171. The reversal of 834112161 is 161211438.

It is a happy number.

The square root of 834112161 is 28881.

It is a perfect power (a square), and thus also a powerful number.

834112161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 470065761 + 364046400 = 21681^2 + 19080^2 .

It is not a de Polignac number, because 834112161 - 25 = 834112129 is a prime.

It is a super-3 number, since 3×8341121613 (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (834112171) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 258325 + ... + 261533.

Almost surely, 2834112161 is an apocalyptic number.

834112161 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

834112161 is the 28881-st square number.

834112161 is the 14441-st centered octagonal number.

It is an amenable number.

834112161 is a deficient number, since it is larger than the sum of its proper divisors (412295650).

834112161 is an frugal number, since it uses more digits than its factorization.

834112161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6430 (or 3212 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The cubic root of 834112161 is about 941.3290995572.

Adding to 834112161 its reverse (161211438), we get a palindrome (995323599).

It can be divided in two parts, 8341 and 12161, that added together give a palindrome (20502).

The spelling of 834112161 in words is "eight hundred thirty-four million, one hundred twelve thousand, one hundred sixty-one".

Divisors: 1 3 9 27 81 3209 9627 28881 86643 259929 10297681 30893043 92679129 278037387 834112161