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130544412 = 22323601787
BaseRepresentation
bin1111100011111…
…11001100011100
3100002122100021020
413301333030130
5231404410122
620542004140
73143415645
oct761771434
9302570236
10130544412
1167763a49
1237876650
132107951b
14134a26cc
15b6d9c5c
hex7c7f31c

130544412 has 48 divisors (see below), whose sum is σ = 318780672. Its totient is φ = 41500800.

The previous prime is 130544371. The next prime is 130544417. The reversal of 130544412 is 214445031.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130544417) 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 15 ways as a sum of consecutive naturals, for example, 165483 + ... + 166269.

It is an arithmetic number, because the mean of its divisors is an integer number (6641264).

Almost surely, 2130544412 is an apocalyptic number.

130544412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130544412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159390336).

130544412 is an abundant number, since it is smaller than the sum of its proper divisors (188236260).

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

130544412 is a wasteful number, since it uses less digits than its factorization.

130544412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418 (or 1416 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 130544412 is about 11425.6033538715. The cubic root of 130544412 is about 507.2858659653.

Adding to 130544412 its reverse (214445031), we get a palindrome (344989443).

The spelling of 130544412 in words is "one hundred thirty million, five hundred forty-four thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 601 787 1202 1574 1803 2361 2404 3148 3606 4722 7212 9444 13823 18101 27646 36202 41469 54303 55292 72404 82938 108606 165876 217212 472987 945974 1418961 1891948 2837922 5675844 10878701 21757402 32636103 43514804 65272206 130544412