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130210123 = 177659419
BaseRepresentation
bin1111100001011…
…01100101001011
3100002000100201011
413300231211023
5231313210443
620530504351
73140524231
oct760554513
9302010634
10130210123
116755587a
12377350b7
1320c90314
1413416951
15b670b9d
hex7c2d94b

130210123 has 4 divisors (see below), whose sum is σ = 137869560. Its totient is φ = 122550688.

The previous prime is 130210121. The next prime is 130210127. The reversal of 130210123 is 321012031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321012031 = 927734603.

It is not a de Polignac number, because 130210123 - 21 = 130210121 is a prime.

It is a super-2 number, since 2×1302101232 = 33909352263350258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130210121) 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, 3829693 + ... + 3829726.

It is an arithmetic number, because the mean of its divisors is an integer number (34467390).

Almost surely, 2130210123 is an apocalyptic number.

130210123 is a deficient number, since it is larger than the sum of its proper divisors (7659437).

130210123 is an equidigital number, since it uses as much as digits as its factorization.

130210123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7659436.

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

The square root of 130210123 is about 11410.9650336858. The cubic root of 130210123 is about 506.8524884448.

Adding to 130210123 its reverse (321012031), we get a palindrome (451222154).

The spelling of 130210123 in words is "one hundred thirty million, two hundred ten thousand, one hundred twenty-three".

Divisors: 1 17 7659419 130210123