Base | Representation |
---|---|
bin | 100101100001011100… |
… | …0000011011100011001 |
3 | 21200222200101111111000 |
4 | 1023002320003130121 |
5 | 2310011143313101 |
6 | 101003433055213 |
7 | 5551551140100 |
oct | 1130270033431 |
9 | 250880344430 |
10 | 80578885401 |
11 | 3119a753273 |
12 | 13749857509 |
13 | 77a2049b61 |
14 | 3c859c7037 |
15 | 216921a486 |
hex | 12c2e03719 |
80578885401 has 48 divisors (see below), whose sum is σ = 138981722880. Its totient is φ = 46006742880.
The previous prime is 80578885399. The next prime is 80578885403. The reversal of 80578885401 is 10458887508.
80578885401 is a `hidden beast` number, since 80 + 5 + 7 + 88 + 85 + 401 = 666.
It is an interprime number because it is at equal distance from previous prime (80578885399) and next prime (80578885403).
It is not a de Polignac number, because 80578885401 - 21 = 80578885399 is a prime.
It is not an unprimeable number, because it can be changed into a prime (80578885403) 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, 1603875 + ... + 1653351.
It is an arithmetic number, because the mean of its divisors is an integer number (2895452560).
Almost surely, 280578885401 is an apocalyptic number.
It is an amenable number.
80578885401 is a deficient number, since it is larger than the sum of its proper divisors (58402837479).
80578885401 is a wasteful number, since it uses less digits than its factorization.
80578885401 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 50731 (or 50718 counting only the distinct ones).
The product of its (nonzero) digits is 2867200, while the sum is 54.
The spelling of 80578885401 in words is "eighty billion, five hundred seventy-eight million, eight hundred eighty-five thousand, four hundred one".
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