Base | Representation |
---|---|
bin | 111100010001101100101 |
3 | 10201100101101 |
4 | 13202031211 |
5 | 1001201031 |
6 | 110200101 |
7 | 22534300 |
oct | 7421545 |
9 | 3640341 |
10 | 1975141 |
11 | 1129a53 |
12 | 7b3031 |
13 | 54202c |
14 | 395b37 |
15 | 290361 |
hex | 1e2365 |
1975141 has 12 divisors (see below), whose sum is σ = 2320812. Its totient is φ = 1675968.
The previous prime is 1975133. The next prime is 1975147. The reversal of 1975141 is 1415791.
It can be written as a sum of positive squares in 2 ways, for example, as 1147041 + 828100 = 1071^2 + 910^2 .
It is not a de Polignac number, because 1975141 - 23 = 1975133 is a prime.
It is a Duffinian number.
Its product of digits (1260) is a multiple of the sum of its prime factors (420).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1975147) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8361 + ... + 8593.
It is an arithmetic number, because the mean of its divisors is an integer number (193401).
21975141 is an apocalyptic number.
It is an amenable number.
1975141 is a deficient number, since it is larger than the sum of its proper divisors (345671).
1975141 is a wasteful number, since it uses less digits than its factorization.
1975141 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 420 (or 413 counting only the distinct ones).
The product of its digits is 1260, while the sum is 28.
The square root of 1975141 is about 1405.3970969089. The cubic root of 1975141 is about 125.4679208814.
It can be divided in two parts, 1975 and 141, that added together give a square (2116 = 462).
The spelling of 1975141 in words is "one million, nine hundred seventy-five thousand, one hundred forty-one".
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