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113230213 = 611856233
BaseRepresentation
bin1101011111111…
…00000110000101
321220001200122121
412233330012011
5212441331323
615122525541
72543304145
oct657740605
9256050577
10113230213
1158a08598
1231b068b1
131a5c6735
1411076925
159e19a5d
hex6bfc185

113230213 has 4 divisors (see below), whose sum is σ = 115086508. Its totient is φ = 111373920.

The previous prime is 113230211. The next prime is 113230267. The reversal of 113230213 is 312032311.

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 14386849 + 98843364 = 3793^2 + 9942^2 .

It is a cyclic number.

It is not a de Polignac number, because 113230213 - 21 = 113230211 is a prime.

It is a super-2 number, since 2×1132302132 = 25642162272050738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113230211) 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, 928056 + ... + 928177.

It is an arithmetic number, because the mean of its divisors is an integer number (28771627).

Almost surely, 2113230213 is an apocalyptic number.

It is an amenable number.

113230213 is a deficient number, since it is larger than the sum of its proper divisors (1856295).

113230213 is an equidigital number, since it uses as much as digits as its factorization.

113230213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856294.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 113230213 is about 10640.9686119263. The cubic root of 113230213 is about 483.7869041769.

Adding to 113230213 its reverse (312032311), we get a palindrome (425262524).

The spelling of 113230213 in words is "one hundred thirteen million, two hundred thirty thousand, two hundred thirteen".

Divisors: 1 61 1856233 113230213