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1111102213 = 13702712163
BaseRepresentation
bin100001000111010…
…0001001100000101
32212102201211200211
41002032201030011
54233420232323
6302130435421
736351133024
oct10216411405
92772654624
101111102213
115202085a1
12270132b71
1314926a140
14a77cc8bb
156782a70d
hex423a1305

1111102213 has 8 divisors (see below), whose sum is σ = 1196840288. Its totient is φ = 1025402544.

The previous prime is 1111102211. The next prime is 1111102249. The reversal of 1111102213 is 3122011111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1111102213 - 21 = 1111102211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111102193 and 1111102202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111102211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85270 + ... + 97432.

It is an arithmetic number, because the mean of its divisors is an integer number (149605036).

Almost surely, 21111102213 is an apocalyptic number.

1111102213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1111102213 is a deficient number, since it is larger than the sum of its proper divisors (85738075).

1111102213 is a wasteful number, since it uses less digits than its factorization.

1111102213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19203.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1111102213 is about 33333.1998613994. The cubic root of 1111102213 is about 1035.7414037939.

Adding to 1111102213 its reverse (3122011111), we get a palindrome (4233113324).

It can be divided in two parts, 11 and 11102213, that added together give a square (11102224 = 33322).

The spelling of 1111102213 in words is "one billion, one hundred eleven million, one hundred two thousand, two hundred thirteen".

Divisors: 1 13 7027 12163 91351 158119 85469401 1111102213