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129490702320000 = 273547151510449
BaseRepresentation
bin11101011100010101100111…
…010100000100000110000000
3121222111012010200120111022210
4131130111213110010012000
5113433033424243220000
61135223112445102120
736163252213643250
oct3534254724040600
9558435120514283
10129490702320000
113829477570a17a
12126341ba257940
135733bc80bc318
1423d95521d5960
15ee853c587350
hex75c567504180

129490702320000 has 640 divisors, whose sum is σ = 494467769664000. Its totient is φ = 29401804800000.

The previous prime is 129490702319999. The next prime is 129490702320013. The reversal of 129490702320000 is 23207094921.

It is a tau number, because it is divible by the number of its divisors (640).

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 79 ways as a sum of consecutive naturals, for example, 253424776 + ... + 253935224.

It is an arithmetic number, because the mean of its divisors is an integer number (772605890100).

Almost surely, 2129490702320000 is an apocalyptic number.

129490702320000 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 129490702320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247233884832000).

129490702320000 is an abundant number, since it is smaller than the sum of its proper divisors (364977067344000).

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

129490702320000 is an equidigital number, since it uses as much as digits as its factorization.

129490702320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510644 (or 510617 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The spelling of 129490702320000 in words is "one hundred twenty-nine trillion, four hundred ninety billion, seven hundred two million, three hundred twenty thousand".