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130888890912 = 25313236768059
BaseRepresentation
bin111100111100110010…
…1011111101000100000
3110111211212112120201110
41321321211133220200
54121030024002122
6140043551103320
712312356134023
oct1717145375040
9414755476643
10130888890912
115056740401a
122144a511b40
13c45c0ab8a0
1464995731ba
153610de890c
hex1e7995fa20

130888890912 has 192 divisors, whose sum is σ = 391868789760. Its totient is φ = 37946962944.

The previous prime is 130888890851. The next prime is 130888890919. The reversal of 130888890912 is 219098888031.

It is not an unprimeable number, because it can be changed into a prime (130888890919) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1889139 + ... + 1957197.

It is an arithmetic number, because the mean of its divisors is an integer number (2040983280).

Almost surely, 2130888890912 is an apocalyptic number.

130888890912 is a gapful number since it is divisible by the number (12) 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 130888890912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195934394880).

130888890912 is an abundant number, since it is smaller than the sum of its proper divisors (260979898848).

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

130888890912 is a wasteful number, since it uses less digits than its factorization.

130888890912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68175 (or 68167 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 57.

The spelling of 130888890912 in words is "one hundred thirty billion, eight hundred eighty-eight million, eight hundred ninety thousand, nine hundred twelve".