Base | Representation |
---|---|
bin | 1111010010000… |
… | …11010110011101 |
3 | 22221020100021110 |
4 | 13221003112131 |
5 | 230304432031 |
6 | 20415452233 |
7 | 3114462114 |
oct | 751032635 |
9 | 287210243 |
10 | 128202141 |
11 | 66404191 |
12 | 36b27079 |
13 | 20739372 |
14 | 13052c7b |
15 | b3c5c46 |
hex | 7a4359d |
128202141 has 8 divisors (see below), whose sum is σ = 171041760. Its totient is φ = 85415312.
The previous prime is 128202079. The next prime is 128202167. The reversal of 128202141 is 141202821.
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 128202141 - 221 = 126104989 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (128202181) 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, 7131 + ... + 17528.
It is an arithmetic number, because the mean of its divisors is an integer number (21380220).
Almost surely, 2128202141 is an apocalyptic number.
It is an amenable number.
128202141 is a deficient number, since it is larger than the sum of its proper divisors (42839619).
128202141 is a wasteful number, since it uses less digits than its factorization.
128202141 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26395.
The product of its (nonzero) digits is 256, while the sum is 21.
The square root of 128202141 is about 11322.6384292708. The cubic root of 128202141 is about 504.2335738660.
Adding to 128202141 its reverse (141202821), we get a palindrome (269404962).
The spelling of 128202141 in words is "one hundred twenty-eight million, two hundred two thousand, one hundred forty-one".
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