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80995200000 = 210355111359
BaseRepresentation
bin100101101101110110…
…0001010110000000000
321202001200202110202020
41023123230022300000
52311334232400000
6101113024121440
75565064561221
oct1133354126000
9252050673666
1080995200000
1131393751620
1213845166280
13783a381260
143cc4dd7248
152190a52ba0
hex12dbb0ac00

80995200000 has 1056 divisors, whose sum is σ = 322381866240. Its totient is φ = 17817600000.

The previous prime is 80995199963. The next prime is 80995200001. The reversal of 80995200000 is 259908.

It is a tau number, because it is divible by the number of its divisors (1056).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (80995200001) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1372799971 + ... + 1372800029.

Almost surely, 280995200000 is an apocalyptic number.

80995200000 is a gapful number since it is divisible by the number (80) 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 80995200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161190933120).

80995200000 is an abundant number, since it is smaller than the sum of its proper divisors (241386666240).

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

80995200000 is a wasteful number, since it uses less digits than its factorization.

80995200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

Adding to 80995200000 its reverse (259908), we get a palindrome (80995459908).

The spelling of 80995200000 in words is "eighty billion, nine hundred ninety-five million, two hundred thousand".