Base | Representation |
---|---|
bin | 101011100101000… |
… | …101011101110001 |
3 | 1212221202212021101 |
4 | 223211011131301 |
5 | 2444133021001 |
6 | 200314524401 |
7 | 24055414222 |
oct | 5345053561 |
9 | 1787685241 |
10 | 731142001 |
11 | 34578a897 |
12 | 184a36701 |
13 | b8624105 |
14 | 6d163249 |
15 | 442c4a01 |
hex | 2b945771 |
731142001 has 8 divisors (see below), whose sum is σ = 774718560. Its totient is φ = 687628608.
The previous prime is 731141993. The next prime is 731142017. The reversal of 731142001 is 100241137.
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 731142001 - 23 = 731141993 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 731142001.
It is not an unprimeable number, because it can be changed into a prime (731142091) 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, 9190 + ... + 39328.
It is an arithmetic number, because the mean of its divisors is an integer number (96839820).
Almost surely, 2731142001 is an apocalyptic number.
It is an amenable number.
731142001 is a deficient number, since it is larger than the sum of its proper divisors (43576559).
731142001 is a wasteful number, since it uses less digits than its factorization.
731142001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31583.
The product of its (nonzero) digits is 168, while the sum is 19.
The square root of 731142001 is about 27039.6375900270. The cubic root of 731142001 is about 900.8806199547.
Adding to 731142001 its reverse (100241137), we get a palindrome (831383138).
The spelling of 731142001 in words is "seven hundred thirty-one million, one hundred forty-two thousand, one".
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