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31441122 = 234421461
BaseRepresentation
bin111011111110…
…0000011100010
32012011101010000
41313330003202
531022103442
63041520430
7531150036
oct167740342
965141100
1031441122
11168251a9
12a643116
13668ac1b
1442661c6
152b60d4c
hex1dfc0e2

31441122 has 40 divisors (see below), whose sum is σ = 70771932. Its totient is φ = 10432800.

The previous prime is 31441103. The next prime is 31441129. The reversal of 31441122 is 22114413.

It can be written as a sum of positive squares in 2 ways, for example, as 25492401 + 5948721 = 5049^2 + 2439^2 .

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 = 31441095 and 31441104.

It is not an unprimeable number, because it can be changed into a prime (31441129) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 67972 + ... + 68432.

Almost surely, 231441122 is an apocalyptic number.

31441122 is an abundant number, since it is smaller than the sum of its proper divisors (39330810).

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

31441122 is a wasteful number, since it uses less digits than its factorization.

31441122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896 (or 887 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 31441122 is about 5607.2383576945. The cubic root of 31441122 is about 315.6210875181.

Adding to 31441122 its reverse (22114413), we get a palindrome (53555535).

The spelling of 31441122 in words is "thirty-one million, four hundred forty-one thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 18 27 54 81 162 421 461 842 922 1263 1383 2526 2766 3789 4149 7578 8298 11367 12447 22734 24894 34101 37341 68202 74682 194081 388162 582243 1164486 1746729 3493458 5240187 10480374 15720561 31441122