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80910403200 = 2733521185133
BaseRepresentation
bin100101101011010100…
…0101100011010000000
321201211210012100102000
41023112220230122000
52311201030400300
6101100354424000
75563015036224
oct1132650543200
9251753170360
1080910403200
113134a8a4520
1213820892000
137825931733
143cb7a42784
1521883a2c00
hex12d6a2c680

80910403200 has 384 divisors, whose sum is σ = 323032449600. Its totient is φ = 19614412800.

The previous prime is 80910403199. The next prime is 80910403207. The reversal of 80910403200 is 230401908.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (80910403207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 907834 + ... + 992966.

Almost surely, 280910403200 is an apocalyptic number.

80910403200 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 80910403200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161516224800).

80910403200 is an abundant number, since it is smaller than the sum of its proper divisors (242122046400).

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

80910403200 is a wasteful number, since it uses less digits than its factorization.

80910403200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85177 (or 85154 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The spelling of 80910403200 in words is "eighty billion, nine hundred ten million, four hundred three thousand, two hundred".