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123163255133 = 193652197861
BaseRepresentation
bin111001010110100011…
…0100010000101011101
3102202220110101121202222
41302231012202011131
54004214243131013
6132325211555125
711620046252402
oct1625506420535
9382813347688
10123163255133
11482624a0566
121ba5315baa5
13b7ca65bb79
145d654c82a9
15330ca46508
hex1cad1a215d

123163255133 has 8 divisors (see below), whose sum is σ = 123821657016. Its totient is φ = 122505062400.

The previous prime is 123163255129. The next prime is 123163255157. The reversal of 123163255133 is 331552361321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 50723147524 + 72440107609 = 225218^2 + 269147^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123163255133 - 22 = 123163255129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123163255093 and 123163255102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123163255333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1209623 + ... + 1307483.

It is an arithmetic number, because the mean of its divisors is an integer number (15477707127).

Almost surely, 2123163255133 is an apocalyptic number.

It is an amenable number.

123163255133 is a deficient number, since it is larger than the sum of its proper divisors (658401883).

123163255133 is an equidigital number, since it uses as much as digits as its factorization.

123163255133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104575.

The product of its digits is 48600, while the sum is 35.

The spelling of 123163255133 in words is "one hundred twenty-three billion, one hundred sixty-three million, two hundred fifty-five thousand, one hundred thirty-three".

Divisors: 1 193 6521 97861 1258553 18887173 638151581 123163255133