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1300071 = 3433357
BaseRepresentation
bin100111101011001100111
32110001100210
410331121213
5313100241
643510503
714023203
oct4753147
92401323
101300071
11808843
12528433
13366996
1425bb03
151aa316
hex13d667

1300071 has 4 divisors (see below), whose sum is σ = 1733432. Its totient is φ = 866712.

The previous prime is 1300051. The next prime is 1300073. The reversal of 1300071 is 1700031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1700031 = 3566677.

It is not a de Polignac number, because 1300071 - 215 = 1267303 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300073) by changing a digit.

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, 216676 + ... + 216681.

It is an arithmetic number, because the mean of its divisors is an integer number (433358).

21300071 is an apocalyptic number.

1300071 is a deficient number, since it is larger than the sum of its proper divisors (433361).

1300071 is an equidigital number, since it uses as much as digits as its factorization.

1300071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433360.

The product of its (nonzero) digits is 21, while the sum is 12.

The square root of 1300071 is about 1140.2065602337. The cubic root of 1300071 is about 109.1412751647.

The spelling of 1300071 in words is "one million, three hundred thousand, seventy-one".

Divisors: 1 3 433357 1300071