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130343420 = 225171920177
BaseRepresentation
bin1111100010011…
…10000111111100
3100002021010120002
413301032013330
5231331442140
620533413432
73141620654
oct761160774
9302233502
10130343420
1167636a39
123779a278
1321008bac
141344d364
15b69a415
hex7c4e1fc

130343420 has 48 divisors (see below), whose sum is σ = 305091360. Its totient is φ = 46485504.

The previous prime is 130343419. The next prime is 130343453. The reversal of 130343420 is 24343031.

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

It is a junction number, because it is equal to n+sod(n) for n = 130343392 and 130343401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3629 + ... + 16548.

It is an arithmetic number, because the mean of its divisors is an integer number (6356070).

Almost surely, 2130343420 is an apocalyptic number.

130343420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130343420 is an abundant number, since it is smaller than the sum of its proper divisors (174747940).

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

130343420 is a wasteful number, since it uses less digits than its factorization.

130343420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20222 (or 20220 counting only the distinct ones).

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

The square root of 130343420 is about 11416.8042814090. The cubic root of 130343420 is about 507.0253855877.

Adding to 130343420 its reverse (24343031), we get a palindrome (154686451).

The spelling of 130343420 in words is "one hundred thirty million, three hundred forty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 17 19 20 34 38 68 76 85 95 170 190 323 340 380 646 1292 1615 3230 6460 20177 40354 80708 100885 201770 343009 383363 403540 686018 766726 1372036 1533452 1715045 1916815 3430090 3833630 6517171 6860180 7667260 13034342 26068684 32585855 65171710 130343420