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130333231220 = 22517383333033
BaseRepresentation
bin111100101100001110…
…1110100100001110100
3110110102010222010220212
41321120131310201310
54113410301344340
6135512501244552
712262531120643
oct1713035644164
9413363863825
10130333231220
1150301790735
1221314403758
13c3a0c3927a
14644584d35a
1535cc238a65
hex1e58774874

130333231220 has 24 divisors (see below), whose sum is σ = 289799773704. Its totient is φ = 49066628096.

The previous prime is 130333231207. The next prime is 130333231243. The reversal of 130333231220 is 22132333031.

130333231220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 70817725456 + 59515505764 = 266116^2 + 243958^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191666177 + ... + 191666856.

It is an arithmetic number, because the mean of its divisors is an integer number (12074990571).

Almost surely, 2130333231220 is an apocalyptic number.

130333231220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130333231220 is an abundant number, since it is smaller than the sum of its proper divisors (159466542484).

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

130333231220 is a wasteful number, since it uses less digits than its factorization.

130333231220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383333059 (or 383333057 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 130333231220 its reverse (22132333031), we get a palindrome (152465564251).

The spelling of 130333231220 in words is "one hundred thirty billion, three hundred thirty-three million, two hundred thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 383333033 766666066 1533332132 1916665165 3833330330 6516661561 7666660660 13033323122 26066646244 32583307805 65166615610 130333231220