Base | Representation |
---|---|
bin | 100101101011000010… |
… | …0010100111110100100 |
3 | 21201211010021000101110 |
4 | 1023112010110332210 |
5 | 2311141110320202 |
6 | 101055414225020 |
7 | 5562541022622 |
oct | 1132604247644 |
9 | 251733230343 |
10 | 80900870052 |
11 | 31345483092 |
12 | 13819655170 |
13 | 7823974512 |
14 | 3cb6680512 |
15 | 218761d26c |
hex | 12d6114fa4 |
80900870052 has 24 divisors (see below), whose sum is σ = 188890291296. Its totient is φ = 26949586048.
The previous prime is 80900870047. The next prime is 80900870093. The reversal of 80900870052 is 25007800908.
It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2151918 + ... + 2189189.
It is an arithmetic number, because the mean of its divisors is an integer number (7870428804).
Almost surely, 280900870052 is an apocalyptic number.
It is an amenable number.
80900870052 is an abundant number, since it is smaller than the sum of its proper divisors (107989421244).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80900870052 is a wasteful number, since it uses less digits than its factorization.
80900870052 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4342667 (or 4342665 counting only the distinct ones).
The product of its (nonzero) digits is 40320, while the sum is 39.
The spelling of 80900870052 in words is "eighty billion, nine hundred million, eight hundred seventy thousand, fifty-two".
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