Base | Representation |
---|---|
bin | 100101010010010010… |
… | …1110010011110000000 |
3 | 21122200021022010000002 |
4 | 1022210211302132000 |
5 | 2302441104441200 |
6 | 100441202415132 |
7 | 5533141256423 |
oct | 1124445623600 |
9 | 248607263002 |
10 | 80070780800 |
11 | 30a5996080a |
12 | 136276614a8 |
13 | 77209b7b4a |
14 | 3c383219ba |
15 | 2139800bd5 |
hex | 12a4972780 |
80070780800 has 48 divisors (see below), whose sum is σ = 197799858600. Its totient is φ = 32028311040.
The previous prime is 80070780791. The next prime is 80070780817. The reversal of 80070780800 is 808707008.
It is a super-2 number, since 2×800707808002 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12507860 + ... + 12514259.
Almost surely, 280070780800 is an apocalyptic number.
80070780800 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
80070780800 is an abundant number, since it is smaller than the sum of its proper divisors (117729077800).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80070780800 is a wasteful number, since it uses less digits than its factorization.
80070780800 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25022143 (or 25022126 counting only the distinct ones).
The product of its (nonzero) digits is 25088, while the sum is 38.
The spelling of 80070780800 in words is "eighty billion, seventy million, seven hundred eighty thousand, eight hundred".
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