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210130123 = 7106928081
BaseRepresentation
bin11001000011001…
…01010011001011
3112122101201100011
430201211103023
5412243130443
632503452351
75131035160
oct1441452313
9478351304
10210130123
11a8681965
125a4570b7
13346c3168
141dc9c067
15136aab9d
hexc8654cb

210130123 has 8 divisors (see below), whose sum is σ = 240381920. Its totient is φ = 179936640.

The previous prime is 210130111. The next prime is 210130127. The reversal of 210130123 is 321031012.

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 210130123 - 217 = 209999051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210130127) 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 7 ways as a sum of consecutive naturals, for example, 6558 + ... + 21523.

It is an arithmetic number, because the mean of its divisors is an integer number (30047740).

Almost surely, 2210130123 is an apocalyptic number.

210130123 is a deficient number, since it is larger than the sum of its proper divisors (30251797).

210130123 is a wasteful number, since it uses less digits than its factorization.

210130123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29157.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 210130123 is about 14495.8657209564. The cubic root of 210130123 is about 594.5149383337.

Adding to 210130123 its reverse (321031012), we get a palindrome (531161135).

The spelling of 210130123 in words is "two hundred ten million, one hundred thirty thousand, one hundred twenty-three".

Divisors: 1 7 1069 7483 28081 196567 30018589 210130123