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110311213 = 971137229
BaseRepresentation
bin1101001001100…
…11011100101101
321200120101112111
412210303130231
5211214424323
614540204021
72506426015
oct644633455
9250511474
10110311213
11572a44a1
1230b39611
1319b13c0c
1410916c45
159a3ec0d
hex693372d

110311213 has 4 divisors (see below), whose sum is σ = 111448540. Its totient is φ = 109173888.

The previous prime is 110311199. The next prime is 110311217. The reversal of 110311213 is 312113011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57123364 + 53187849 = 7558^2 + 7293^2 .

It is a de Polignac number, because none of the positive numbers 2k-110311213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110311193 and 110311202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110311217) 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, 568518 + ... + 568711.

It is an arithmetic number, because the mean of its divisors is an integer number (27862135).

Almost surely, 2110311213 is an apocalyptic number.

It is an amenable number.

110311213 is a deficient number, since it is larger than the sum of its proper divisors (1137327).

110311213 is an equidigital number, since it uses as much as digits as its factorization.

110311213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137326.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 110311213 is about 10502.9145002709. The cubic root of 110311213 is about 479.5934245226.

Adding to 110311213 its reverse (312113011), we get a palindrome (422424224).

The spelling of 110311213 in words is "one hundred ten million, three hundred eleven thousand, two hundred thirteen".

Divisors: 1 97 1137229 110311213