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110331220 = 2255516561
BaseRepresentation
bin1101001001110…
…00010101010100
321200121101222111
412210320111110
5211221044340
614540440404
72506541236
oct644702524
9250541874
10110331220
115730852a
1230b49104
1319b2005c
1410920256
159a45aea
hex6938554

110331220 has 12 divisors (see below), whose sum is σ = 231695604. Its totient is φ = 44132480.

The previous prime is 110331211. The next prime is 110331223. The reversal of 110331220 is 22133011.

It can be written as a sum of positive squares in 2 ways, for example, as 64064016 + 46267204 = 8004^2 + 6802^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 110331220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110331223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2758261 + ... + 2758300.

It is an arithmetic number, because the mean of its divisors is an integer number (19307967).

Almost surely, 2110331220 is an apocalyptic number.

110331220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110331220 is an abundant number, since it is smaller than the sum of its proper divisors (121364384).

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

110331220 is a wasteful number, since it uses less digits than its factorization.

110331220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5516570 (or 5516568 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 110331220 is about 10503.8669070014. The cubic root of 110331220 is about 479.6224171799.

Adding to 110331220 its reverse (22133011), we get a palindrome (132464231).

It can be divided in two parts, 1103 and 31220, that added together give a palindrome (32323).

The spelling of 110331220 in words is "one hundred ten million, three hundred thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 5516561 11033122 22066244 27582805 55165610 110331220