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123113033 = 2929314489
BaseRepresentation
bin1110101011010…
…00111001001001
322120122210022222
413111220321021
5223004104113
620114423425
73023305061
oct725507111
9276583288
10123113033
116354870a
1235291b75
131c676b64
14124ca3a1
15ac1ce08
hex7568e49

123113033 has 8 divisors (see below), whose sum is σ = 127801800. Its totient is φ = 118453888.

The previous prime is 123113021. The next prime is 123113057. The reversal of 123113033 is 330311321.

It can be written as a sum of positive squares in 4 ways, for example, as 26543104 + 96569929 = 5152^2 + 9827^2 .

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 123113033 - 24 = 123113017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123113063) 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, 1253 + ... + 15741.

It is an arithmetic number, because the mean of its divisors is an integer number (15975225).

Almost surely, 2123113033 is an apocalyptic number.

It is an amenable number.

123113033 is a deficient number, since it is larger than the sum of its proper divisors (4688767).

123113033 is a wasteful number, since it uses less digits than its factorization.

123113033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14811.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 123113033 is about 11095.6312573914. The cubic root of 123113033 is about 497.4712766764.

Adding to 123113033 its reverse (330311321), we get a palindrome (453424354).

The spelling of 123113033 in words is "one hundred twenty-three million, one hundred thirteen thousand, thirty-three".

Divisors: 1 29 293 8497 14489 420181 4245277 123113033