Base | Representation |
---|---|
bin | 1011110001000010100… |
… | …0110000000111010101 |
3 | 201022202122221002100212 |
4 | 2330100220300013111 |
5 | 11302442000044310 |
6 | 232510225015205 |
7 | 20414165406305 |
oct | 2742050600725 |
9 | 638678832325 |
10 | 202142581205 |
11 | 78801243174 |
12 | 33215184505 |
13 | 160a61986c6 |
14 | 9ad8893605 |
15 | 53d15ed205 |
hex | 2f10a301d5 |
202142581205 has 8 divisors (see below), whose sum is σ = 244059264672. Its totient is φ = 160721953488.
The previous prime is 202142581187. The next prime is 202142581327. The reversal of 202142581205 is 502185241202.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 202142581205 - 230 = 201068839381 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124013039 + ... + 124014668.
It is an arithmetic number, because the mean of its divisors is an integer number (30507408084).
Almost surely, 2202142581205 is an apocalyptic number.
It is an amenable number.
202142581205 is a deficient number, since it is larger than the sum of its proper divisors (41916683467).
202142581205 is a wasteful number, since it uses less digits than its factorization.
202142581205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 248027875.
The product of its (nonzero) digits is 12800, while the sum is 32.
The spelling of 202142581205 in words is "two hundred two billion, one hundred forty-two million, five hundred eighty-one thousand, two hundred five".
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