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1293485 = 5258697
BaseRepresentation
bin100111011110010101101
32102201022212
410323302231
5312342420
643420205
713665044
oct4736255
92381285
101293485
118038a6
12524665
1336399b
1425955b
151a83c5
hex13bcad

1293485 has 4 divisors (see below), whose sum is σ = 1552188. Its totient is φ = 1034784.

The previous prime is 1293473. The next prime is 1293491. The reversal of 1293485 is 5843921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5843921 = 9196359.

It can be written as a sum of positive squares in 2 ways, for example, as 249001 + 1044484 = 499^2 + 1022^2 .

It is a cyclic number.

It is not a de Polignac number, because 1293485 - 26 = 1293421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129344 + ... + 129353.

It is an arithmetic number, because the mean of its divisors is an integer number (388047).

21293485 is an apocalyptic number.

It is an amenable number.

1293485 is a deficient number, since it is larger than the sum of its proper divisors (258703).

1293485 is an equidigital number, since it uses as much as digits as its factorization.

1293485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258702.

The product of its digits is 8640, while the sum is 32.

The square root of 1293485 is about 1137.3148200916. The cubic root of 1293485 is about 108.9566643094.

The spelling of 1293485 in words is "one million, two hundred ninety-three thousand, four hundred eighty-five".

Divisors: 1 5 258697 1293485