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123032113 = 162775619
BaseRepresentation
bin1110101010101…
…01001000110001
322120111200022221
413111111020301
5222444011423
620113001041
73022520131
oct725251061
9276450287
10123032113
11634a2936
1235253181
131c649089
14124a8ac1
15ac03e5d
hex7555231

123032113 has 4 divisors (see below), whose sum is σ = 123109360. Its totient is φ = 122954868.

The previous prime is 123032101. The next prime is 123032153. The reversal of 123032113 is 311230321.

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, and also an emirpimes, since its reverse is a distinct semiprime: 311230321 = 386380567.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-123032113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123032153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36183 + ... + 39436.

It is an arithmetic number, because the mean of its divisors is an integer number (30777340).

Almost surely, 2123032113 is an apocalyptic number.

It is an amenable number.

123032113 is a deficient number, since it is larger than the sum of its proper divisors (77247).

123032113 is an equidigital number, since it uses as much as digits as its factorization.

123032113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77246.

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

The square root of 123032113 is about 11091.9841777745. The cubic root of 123032113 is about 497.3622597899.

Adding to 123032113 its reverse (311230321), we get a palindrome (434262434).

The spelling of 123032113 in words is "one hundred twenty-three million, thirty-two thousand, one hundred thirteen".

Divisors: 1 1627 75619 123032113