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130144122 = 2327230229
BaseRepresentation
bin1111100000111…
…01011101111010
3100001220000011200
413300131131322
5231304102442
620525235030
73140130633
oct760353572
9301800150
10130144122
1167510229
1237702a76
1320c69274
14133da88a
15b65b34c
hex7c1d77a

130144122 has 12 divisors (see below), whose sum is σ = 281978970. Its totient is φ = 43381368.

The previous prime is 130144121. The next prime is 130144123. The reversal of 130144122 is 221441031.

It is an interprime number because it is at equal distance from previous prime (130144121) and next prime (130144123).

It can be written as a sum of positive squares in only one way, i.e., 109432521 + 20711601 = 10461^2 + 4551^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 7230229 = 130144122 / (1 + 3 + 0 + 1 + 4 + 4 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 130144095 and 130144104.

It is not an unprimeable number, because it can be changed into a prime (130144121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3615097 + ... + 3615132.

Almost surely, 2130144122 is an apocalyptic number.

130144122 is an abundant number, since it is smaller than the sum of its proper divisors (151834848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130144122 is a wasteful number, since it uses less digits than its factorization.

130144122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7230237 (or 7230234 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 130144122 is about 11408.0726680715. The cubic root of 130144122 is about 506.7668360544.

Adding to 130144122 its reverse (221441031), we get a palindrome (351585153).

The spelling of 130144122 in words is "one hundred thirty million, one hundred forty-four thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 18 7230229 14460458 21690687 43381374 65072061 130144122