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130031100000 = 253255144479
BaseRepresentation
bin111100100011001110…
…1010010000001100000
3110102122002110021210200
41321012131102001200
54112300430200000
6135422505425200
712252202053624
oct1710635220140
9412562407720
10130031100000
115016719100a
122124b19b200
13c3534733b9
146417683184
1535b0958500
hex1e46752060

130031100000 has 216 divisors, whose sum is σ = 462193542720. Its totient is φ = 34674720000.

The previous prime is 130031099999. The next prime is 130031100011. The reversal of 130031100000 is 1130031.

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 polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 827761 + ... + 972239.

It is an arithmetic number, because the mean of its divisors is an integer number (2139784920).

Almost surely, 2130031100000 is an apocalyptic number.

130031100000 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 130031100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231096771360).

130031100000 is an abundant number, since it is smaller than the sum of its proper divisors (332162442720).

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

130031100000 is an equidigital number, since it uses as much as digits as its factorization.

130031100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144520 (or 144489 counting only the distinct ones).

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

Adding to 130031100000 its reverse (1130031), we get a palindrome (130032230031).

The spelling of 130031100000 in words is "one hundred thirty billion, thirty-one million, one hundred thousand".