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130123418 = 24311631301
BaseRepresentation
bin1111100000110…
…00011010011010
3100001211221202212
413300120122122
5231302422133
620524555122
73140013365
oct760303232
9301757685
10130123418
11674a6717
12376b2aa2
1320c5ca09
14133d30dc
15b655148
hex7c1869a

130123418 has 16 divisors (see below), whose sum is σ = 200049696. Its totient is φ = 63445200.

The previous prime is 130123417. The next prime is 130123421. The reversal of 130123418 is 814321031.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 130123393 and 130123402.

It is not an unprimeable number, because it can be changed into a prime (130123417) 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, 99368 + ... + 100668.

It is an arithmetic number, because the mean of its divisors is an integer number (12503106).

Almost surely, 2130123418 is an apocalyptic number.

130123418 is a deficient number, since it is larger than the sum of its proper divisors (69926278).

130123418 is a wasteful number, since it uses less digits than its factorization.

130123418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2509.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 130123418 is about 11407.1652043792. The cubic root of 130123418 is about 506.7399615996.

Adding to 130123418 its reverse (814321031), we get a palindrome (944444449).

The spelling of 130123418 in words is "one hundred thirty million, one hundred twenty-three thousand, four hundred eighteen".

Divisors: 1 2 43 86 1163 1301 2326 2602 50009 55943 100018 111886 1513063 3026126 65061709 130123418