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1283941 is a prime number
BaseRepresentation
bin100111001011101100101
32102020020101
410321131211
5312041231
643304101
713625161
oct4713545
92366211
101283941
117a770a
1251b031
1335c539
14255ca1
151a5661
hex139765

1283941 has 2 divisors, whose sum is σ = 1283942. Its totient is φ = 1283940.

The previous prime is 1283939. The next prime is 1283957. The reversal of 1283941 is 1493821.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1147041 + 136900 = 1071^2 + 370^2 .

It is a cyclic number.

It is not a de Polignac number, because 1283941 - 21 = 1283939 is a prime.

Together with 1283939, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1283981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641970 + 641971.

It is an arithmetic number, because the mean of its divisors is an integer number (641971).

21283941 is an apocalyptic number.

It is an amenable number.

1283941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1283941 is an equidigital number, since it uses as much as digits as its factorization.

1283941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 28.

The square root of 1283941 is about 1133.1112037219. Note that the first 3 decimals coincide. The cubic root of 1283941 is about 108.6880229938.

It can be divided in two parts, 12839 and 41, that added together give a triangular number (12880 = T160).

The spelling of 1283941 in words is "one million, two hundred eighty-three thousand, nine hundred forty-one".