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130324340 = 225101149433
BaseRepresentation
bin1111100010010…
…01011101110100
3100002020011101102
413301021131310
5231330334330
620533145232
73141511226
oct761113564
9302204342
10130324340
1167623673
123778b218
13210002c3
1413446416
15b694945
hex7c49774

130324340 has 48 divisors (see below), whose sum is σ = 278888400. Its totient is φ = 51148800.

The previous prime is 130324319. The next prime is 130324343. The reversal of 130324340 is 43423031.

It can be written as a sum of positive squares in 8 ways, for example, as 6091024 + 124233316 = 2468^2 + 11146^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130324343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300764 + ... + 301196.

It is an arithmetic number, because the mean of its divisors is an integer number (5810175).

Almost surely, 2130324340 is an apocalyptic number.

130324340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130324340 is an abundant number, since it is smaller than the sum of its proper divisors (148564060).

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

130324340 is a wasteful number, since it uses less digits than its factorization.

130324340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 690 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 130324340 is about 11415.9686404615. The cubic root of 130324340 is about 507.0006444937. Note that the first 3 decimals are identical.

Adding to 130324340 its reverse (43423031), we get a palindrome (173747371).

The spelling of 130324340 in words is "one hundred thirty million, three hundred twenty-four thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 101 149 202 298 404 433 505 596 745 866 1010 1490 1732 2020 2165 2980 4330 8660 15049 30098 43733 60196 64517 75245 87466 129034 150490 174932 218665 258068 300980 322585 437330 645170 874660 1290340 6516217 13032434 26064868 32581085 65162170 130324340