Base | Representation |
---|---|
bin | 100101101101000101… |
… | …1010010010111000000 |
3 | 21201222220222011220000 |
4 | 1023122023102113000 |
5 | 2311311232200300 |
6 | 101110315520000 |
7 | 5564335654116 |
oct | 1133213222700 |
9 | 251886864800 |
10 | 80969803200 |
11 | 31380385630 |
12 | 13838759000 |
13 | 783502b570 |
14 | 3cc18a5ab6 |
15 | 218d6d7c00 |
hex | 12da2d25c0 |
80969803200 has 1680 divisors, whose sum is σ = 371665524384. Its totient is φ = 16986931200.
The previous prime is 80969803163. The next prime is 80969803223. The reversal of 80969803200 is 230896908.
It is a super-2 number, since 2×809698032002 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 315057472 + ... + 315057728.
Almost surely, 280969803200 is an apocalyptic number.
80969803200 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 80969803200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185832762192).
80969803200 is an abundant number, since it is smaller than the sum of its proper divisors (290695721184).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80969803200 is a wasteful number, since it uses less digits than its factorization.
80969803200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 332 (or 308 counting only the distinct ones).
The product of its (nonzero) digits is 186624, while the sum is 45.
The spelling of 80969803200 in words is "eighty billion, nine hundred sixty-nine million, eight hundred three thousand, two hundred".
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