Search a number
-
+
129082800000 = 273557112127
BaseRepresentation
bin111100000110111101…
…1110011011110000000
3110100012000001122202110
41320031323303132000
54103330144100000
6135144432215320
712216535460610
oct1701573633600
9410160048673
10129082800000
114a81a96a200
122102569a540
13c231b6833b
146367752a40
15355758a850
hex1e0def3780

129082800000 has 1152 divisors, whose sum is σ = 542605271040. Its totient is φ = 26611200000.

The previous prime is 129082799987. The next prime is 129082800031. The reversal of 129082800000 is 8280921.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1016399937 + ... + 1016400063.

It is an arithmetic number, because the mean of its divisors is an integer number (471011520).

Almost surely, 2129082800000 is an apocalyptic number.

129082800000 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 129082800000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271302635520).

129082800000 is an abundant number, since it is smaller than the sum of its proper divisors (413522471040).

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

129082800000 is an equidigital number, since it uses as much as digits as its factorization.

129082800000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The spelling of 129082800000 in words is "one hundred twenty-nine billion, eighty-two million, eight hundred thousand".