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130020002100 = 2232528913112391
BaseRepresentation
bin111100100010111001…
…0111100100100110100
3110102121022120110100100
41321011302330210310
54112240110031400
6135421431514100
712252005532342
oct1710562744464
9412538513310
10130020002100
11501609a0a9a
1221247528930
13c351088bb1
146415dd4992
1535ae9b5100
hex1e45cbc934

130020002100 has 216 divisors, whose sum is σ = 415299044160. Its totient is φ = 34017984000.

The previous prime is 130020002071. The next prime is 130020002113. The reversal of 130020002100 is 1200020031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

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 71 ways as a sum of consecutive naturals, for example, 10486905 + ... + 10499295.

It is an arithmetic number, because the mean of its divisors is an integer number (1922680760).

Almost surely, 2130020002100 is an apocalyptic number.

130020002100 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 130020002100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207649522080).

130020002100 is an abundant number, since it is smaller than the sum of its proper divisors (285279042060).

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

130020002100 is a wasteful number, since it uses less digits than its factorization.

130020002100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12631 (or 12621 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 130020002100 its reverse (1200020031), we get a palindrome (131220022131).

The spelling of 130020002100 in words is "one hundred thirty billion, twenty million, two thousand, one hundred".