Base | Representation |
---|---|
bin | 1000010100100… |
… | …01000001010100 |
3 | 11212100012121221 |
4 | 10022101001110 |
5 | 120332100040 |
6 | 10532020124 |
7 | 1505201413 |
oct | 412210124 |
9 | 155305557 |
10 | 69800020 |
11 | 36444874 |
12 | 1b461644 |
13 | 115cb7b4 |
14 | 93ad47a |
15 | 61db74a |
hex | 4291054 |
69800020 has 24 divisors (see below), whose sum is σ = 146764800. Its totient is φ = 27884832.
The previous prime is 69799979. The next prime is 69800021. The reversal of 69800020 is 2000896.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69800021) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19101 + ... + 22459.
It is an arithmetic number, because the mean of its divisors is an integer number (6115200).
Almost surely, 269800020 is an apocalyptic number.
It is an amenable number.
69800020 is an abundant number, since it is smaller than the sum of its proper divisors (76964780).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69800020 is a wasteful number, since it uses less digits than its factorization.
69800020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4407 (or 4405 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 25.
The square root of 69800020 is about 8354.6406266218. The cubic root of 69800020 is about 411.7356915370.
The spelling of 69800020 in words is "sixty-nine million, eight hundred thousand, twenty".
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