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130242330 = 2345236991
BaseRepresentation
bin1111100001101…
…01011100011010
3100002001222220000
413300311130122
5231320223310
620531313430
73141020151
oct760653432
9302058800
10130242330
1167577a99
123774b876
1320ca1b8a
1413424598
15b67a4c0
hex7c3571a

130242330 has 80 divisors (see below), whose sum is σ = 365485824. Its totient is φ = 33216480.

The previous prime is 130242317. The next prime is 130242337. The reversal of 130242330 is 33242031.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130242337) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15135 + ... + 22125.

Almost surely, 2130242330 is an apocalyptic number.

130242330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 130242330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182742912).

130242330 is an abundant number, since it is smaller than the sum of its proper divisors (235243494).

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

130242330 is a wasteful number, since it uses less digits than its factorization.

130242330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7033 (or 7024 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 130242330 is about 11412.3761767653. The cubic root of 130242330 is about 506.8942743726.

Adding to 130242330 its reverse (33242031), we get a palindrome (163484361).

The spelling of 130242330 in words is "one hundred thirty million, two hundred forty-two thousand, three hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 23 27 30 45 46 54 69 81 90 115 135 138 162 207 230 270 345 405 414 621 690 810 1035 1242 1863 2070 3105 3726 6210 6991 9315 13982 18630 20973 34955 41946 62919 69910 104865 125838 160793 188757 209730 314595 321586 377514 482379 566271 629190 803965 943785 964758 1132542 1447137 1607930 1887570 2411895 2831355 2894274 4341411 4823790 5662710 7235685 8682822 13024233 14471370 21707055 26048466 43414110 65121165 130242330