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80002880000 = 29542937233
BaseRepresentation
bin100101010000010001…
…0110001001000000000
321122111112112101121122
41022200202301020000
52302321214130000
6100430335211412
75531355155051
oct1124042611000
9248445471548
1080002880000
1130a245a394a
1213608976b68
13770c902964
143c2d2c8728
15213388c085
hex12a08b1200

80002880000 has 400 divisors, whose sum is σ = 213131369880. Its totient is φ = 29933568000.

The previous prime is 80002879951. The next prime is 80002880033. The reversal of 80002880000 is 8820008.

It can be written as a sum of positive squares in 20 ways, for example, as 25186959616 + 54815920384 = 158704^2 + 234128^2 .

It is a tau number, because it is divible by the number of its divisors (400).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 343359884 + ... + 343360116.

Almost surely, 280002880000 is an apocalyptic number.

80002880000 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 80002880000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106565684940).

80002880000 is an abundant number, since it is smaller than the sum of its proper divisors (133128489880).

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

80002880000 is an equidigital number, since it uses as much as digits as its factorization.

80002880000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The spelling of 80002880000 in words is "eighty billion, two million, eight hundred eighty thousand".