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130012042000 = 245385775853
BaseRepresentation
bin111100100010101010…
…0100101001100010000
3110102120202121001010211
41321011110211030100
54112231040321000
6135420545133504
712251551060141
oct1710524451420
9412522531124
10130012042000
11501574544a5
122124492a294
13c34c52c989
146414d21ac8
1535ade417ba
hex1e45525310

130012042000 has 80 divisors (see below), whose sum is σ = 314740091952. Its totient is φ = 51943449600.

The previous prime is 130012041983. The next prime is 130012042019. The reversal of 130012042000 is 240210031.

It can be written as a sum of positive squares in 8 ways, for example, as 40309395984 + 89702646016 = 200772^2 + 299504^2 .

It is a tau number, because it is divible by the number of its divisors (80).

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, 1676074 + ... + 1751926.

Almost surely, 2130012042000 is an apocalyptic number.

130012042000 is a gapful number since it is divisible by the number (10) 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 130012042000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157370045976).

130012042000 is an abundant number, since it is smaller than the sum of its proper divisors (184728049952).

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

130012042000 is an equidigital number, since it uses as much as digits as its factorization.

130012042000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76733 (or 76717 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 130012042000 its reverse (240210031), we get a palindrome (130252252031).

The spelling of 130012042000 in words is "one hundred thirty billion, twelve million, forty-two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 857 1000 1714 2000 3428 4285 6856 8570 13712 17140 21425 34280 42850 68560 75853 85700 107125 151706 171400 214250 303412 342800 379265 428500 606824 758530 857000 1213648 1517060 1714000 1896325 3034120 3792650 6068240 7585300 9481625 15170600 18963250 30341200 37926500 65006021 75853000 130012042 151706000 260024084 325030105 520048168 650060210 1040096336 1300120420 1625150525 2600240840 3250301050 5200481680 6500602100 8125752625 13001204200 16251505250 26002408400 32503010500 65006021000 130012042000