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130021130232 = 2333785992811
BaseRepresentation
bin111100100010111011…
…1001111111111111000
3110102121101200202212000
41321011313033333320
54112240402131412
6135421512021000
712252021241350
oct1710567177770
9412541622760
10130021130232
11501615a1634
1221247991760
13c351392526
146416209b60
1535aeb394dc
hex1e45dcfff8

130021130232 has 64 divisors (see below), whose sum is σ = 412765497600. Its totient is φ = 37148893920.

The previous prime is 130021130227. The next prime is 130021130233. The reversal of 130021130232 is 232031120031.

130021130232 is a `hidden beast` number, since 1 + 300 + 2 + 1 + 130 + 232 = 666.

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 (130021130233) 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, 42994894 + ... + 42997917.

It is an arithmetic number, because the mean of its divisors is an integer number (6449460900).

Almost surely, 2130021130232 is an apocalyptic number.

130021130232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130021130232 is an abundant number, since it is smaller than the sum of its proper divisors (282744367368).

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

130021130232 is a wasteful number, since it uses less digits than its factorization.

130021130232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85992833 (or 85992823 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 130021130232 its reverse (232031120031), we get a palindrome (362052250263).

The spelling of 130021130232 in words is "one hundred thirty billion, twenty-one million, one hundred thirty thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 54 56 63 72 84 108 126 168 189 216 252 378 504 756 1512 85992811 171985622 257978433 343971244 515956866 601949677 687942488 773935299 1031913732 1203899354 1547870598 1805849031 2063827464 2321805897 2407798708 3095741196 3611698062 4643611794 4815597416 5417547093 6191482392 7223396124 9287223588 10835094186 14446792248 16252641279 18574447176 21670188372 32505282558 43340376744 65010565116 130021130232