Base | Representation |
---|---|
bin | 100101011011100000… |
… | …1001101111101110000 |
3 | 21200110211002002210000 |
4 | 1022313001031331300 |
5 | 2304104232224300 |
6 | 100532005310000 |
7 | 5543614253130 |
oct | 1126701157560 |
9 | 250424062700 |
10 | 80379961200 |
11 | 310a8435600 |
12 | 136b3105300 |
13 | 776ca7b426 |
14 | 3c67404ac0 |
15 | 2156a24c00 |
hex | 12b704df70 |
80379961200 has 1800 divisors, whose sum is σ = 378592331040. Its totient is φ = 15966720000.
The previous prime is 80379961117. The next prime is 80379961241. The reversal of 80379961200 is 216997308.
It is a tau number, because it is divible by the number of its divisors (1800).
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 pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 359 ways as a sum of consecutive naturals, for example, 795841150 + ... + 795841250.
Almost surely, 280379961200 is an apocalyptic number.
80379961200 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 80379961200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189296165520).
80379961200 is an abundant number, since it is smaller than the sum of its proper divisors (298212369840).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80379961200 is a wasteful number, since it uses less digits than its factorization.
80379961200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 189 (or 158 counting only the distinct ones).
The product of its (nonzero) digits is 163296, while the sum is 45.
The spelling of 80379961200 in words is "eighty billion, three hundred seventy-nine million, nine hundred sixty-one thousand, two hundred".
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