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123232133 = 177248949
BaseRepresentation
bin1110101100001…
…01111110000101
322120212211201002
413112011332011
5223021412013
620121143045
73024312233
oct726057605
9276784632
10123232133
116361a142
123532aa85
131c6b912b
141251b953
15ac43358
hex7585f85

123232133 has 4 divisors (see below), whose sum is σ = 130481100. Its totient is φ = 115983168.

The previous prime is 123232121. The next prime is 123232141. The reversal of 123232133 is 331232321.

Adding to 123232133 its reverse (331232321), we get a palindrome (454464454).

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 68442529 + 54789604 = 8273^2 + 7402^2 .

It is a cyclic number.

It is not a de Polignac number, because 123232133 - 24 = 123232117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123232033) 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, 3624458 + ... + 3624491.

It is an arithmetic number, because the mean of its divisors is an integer number (32620275).

Almost surely, 2123232133 is an apocalyptic number.

It is an amenable number.

123232133 is a deficient number, since it is larger than the sum of its proper divisors (7248967).

123232133 is an equidigital number, since it uses as much as digits as its factorization.

123232133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7248966.

The product of its digits is 648, while the sum is 20.

The square root of 123232133 is about 11100.9969372124. The cubic root of 123232133 is about 497.6316434874.

The spelling of 123232133 in words is "one hundred twenty-three million, two hundred thirty-two thousand, one hundred thirty-three".

Divisors: 1 17 7248949 123232133