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101102213 = 175947189
BaseRepresentation
bin1100000011010…
…11001010000101
321001020112011102
412001223022011
5201340232323
614010545445
72335232432
oct601531205
9231215142
10101102213
1152084653
1229a38285
1317c3b3c4
14d5dab89
158d21328
hex606b285

101102213 has 4 divisors (see below), whose sum is σ = 107049420. Its totient is φ = 95155008.

The previous prime is 101102203. The next prime is 101102219. The reversal of 101102213 is 312201101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312201101 = 417614661.

It can be written as a sum of positive squares in 2 ways, for example, as 89151364 + 11950849 = 9442^2 + 3457^2 .

It is a cyclic number.

It is not a de Polignac number, because 101102213 - 220 = 100053637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101102194 and 101102203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101102219) 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 3 ways as a sum of consecutive naturals, for example, 2973578 + ... + 2973611.

It is an arithmetic number, because the mean of its divisors is an integer number (26762355).

Almost surely, 2101102213 is an apocalyptic number.

It is an amenable number.

101102213 is a deficient number, since it is larger than the sum of its proper divisors (5947207).

101102213 is an equidigital number, since it uses as much as digits as its factorization.

101102213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5947206.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 101102213 is about 10054.9596219975. The cubic root of 101102213 is about 465.8579958063.

Adding to 101102213 its reverse (312201101), we get a palindrome (413303314).

The spelling of 101102213 in words is "one hundred one million, one hundred two thousand, two hundred thirteen".

Divisors: 1 17 5947189 101102213