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130801968 = 24321127507
BaseRepresentation
bin1111100101111…
…10000100110000
3100010010102120100
413302332010300
5231441130333
620551312400
73145540563
oct762760460
9303112510
10130801968
116791a500
123797b700
132113981b
141352c4da
15b73b213
hex7cbe130

130801968 has 90 divisors (see below), whose sum is σ = 402421292. Its totient is φ = 39631680.

The previous prime is 130801963. The next prime is 130801973. The reversal of 130801968 is 869108031.

It is an interprime number because it is at equal distance from previous prime (130801963) and next prime (130801973).

It is a super-3 number, since 3×1308019683 (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (130801963) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13671 + ... + 21177.

Almost surely, 2130801968 is an apocalyptic number.

130801968 is a gapful number since it is divisible by the number (18) 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 130801968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201210646).

130801968 is an abundant number, since it is smaller than the sum of its proper divisors (271619324).

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

130801968 is a wasteful number, since it uses less digits than its factorization.

130801968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7543 (or 7523 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 130801968 is about 11436.8688022553. The cubic root of 130801968 is about 507.6192612855.

Adding to 130801968 its reverse (869108031), we get a palindrome (999909999).

It can be divided in two parts, 130801 and 968, that added together give a square (131769 = 3632).

The spelling of 130801968 in words is "one hundred thirty million, eight hundred one thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 33 36 44 48 66 72 88 99 121 132 144 176 198 242 264 363 396 484 528 726 792 968 1089 1452 1584 1936 2178 2904 4356 5808 7507 8712 15014 17424 22521 30028 45042 60056 67563 82577 90084 120112 135126 165154 180168 247731 270252 330308 360336 495462 540504 660616 743193 908347 990924 1081008 1321232 1486386 1816694 1981848 2725041 2972772 3633388 3963696 5450082 5945544 7266776 8175123 10900164 11891088 14533552 16350246 21800328 32700492 43600656 65400984 130801968