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123325213 = 1111211383
BaseRepresentation
bin1110101100111…
…00101100011101
322121001120101111
413112130230131
5223032401323
620123142021
73025150504
oct726345435
9277046344
10123325213
1163683070
1235374911
131c71c5cb
141254383b
15ac60c0d
hex759cb1d

123325213 has 4 divisors (see below), whose sum is σ = 134536608. Its totient is φ = 112113820.

The previous prime is 123325187. The next prime is 123325217. The reversal of 123325213 is 312523321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-123325213 is a prime.

It is a super-2 number, since 2×1233252132 = 30418216322990738, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123325217) 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, 5605681 + ... + 5605702.

It is an arithmetic number, because the mean of its divisors is an integer number (33634152).

Almost surely, 2123325213 is an apocalyptic number.

It is an amenable number.

123325213 is a deficient number, since it is larger than the sum of its proper divisors (11211395).

123325213 is a wasteful number, since it uses less digits than its factorization.

123325213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11211394.

The product of its digits is 1080, while the sum is 22.

The square root of 123325213 is about 11105.1885621092. The cubic root of 123325213 is about 497.7569027442.

Adding to 123325213 its reverse (312523321), we get a palindrome (435848534).

The spelling of 123325213 in words is "one hundred twenty-three million, three hundred twenty-five thousand, two hundred thirteen".

Divisors: 1 11 11211383 123325213