Search a number
-
+
123010133 = 271345341
BaseRepresentation
bin1110101010011…
…11110001010101
322120110120011212
413111033301111
5222442311013
620112311205
73022366061
oct725176125
9276416155
10123010133
1163488374
1235242505
131c63c07c
14124a0aa1
15abec6a8
hex754fc55

123010133 has 4 divisors (see below), whose sum is σ = 123058188. Its totient is φ = 122962080.

The previous prime is 123010109. The next prime is 123010157. The reversal of 123010133 is 331010321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331010321 = 2911414149.

It is an interprime number because it is at equal distance from previous prime (123010109) and next prime (123010157).

It can be written as a sum of positive squares in 2 ways, for example, as 58094884 + 64915249 = 7622^2 + 8057^2 .

It is a cyclic number.

It is not a de Polignac number, because 123010133 - 28 = 123009877 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 (123010033) 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, 19958 + ... + 25383.

It is an arithmetic number, because the mean of its divisors is an integer number (30764547).

Almost surely, 2123010133 is an apocalyptic number.

It is an amenable number.

123010133 is a deficient number, since it is larger than the sum of its proper divisors (48055).

123010133 is an equidigital number, since it uses as much as digits as its factorization.

123010133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48054.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 123010133 is about 11090.9933279215. The cubic root of 123010133 is about 497.3326396815.

Adding to 123010133 its reverse (331010321), we get a palindrome (454020454).

The spelling of 123010133 in words is "one hundred twenty-three million, ten thousand, one hundred thirty-three".

Divisors: 1 2713 45341 123010133