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1306061 = 3142131
BaseRepresentation
bin100111110110111001101
32110100120122
410332313031
5313243221
643554325
714046521
oct4766715
92410518
101306061
11812299
1252b9a5
13369623
1425dd81
151abeab
hex13edcd

1306061 has 4 divisors (see below), whose sum is σ = 1348224. Its totient is φ = 1263900.

The previous prime is 1306051. The next prime is 1306069. The reversal of 1306061 is 1606031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1606031 = 7229433.

It is a cyclic number.

It is not a de Polignac number, because 1306061 - 214 = 1289677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21035 + ... + 21096.

It is an arithmetic number, because the mean of its divisors is an integer number (337056).

21306061 is an apocalyptic number.

It is an amenable number.

1306061 is a deficient number, since it is larger than the sum of its proper divisors (42163).

1306061 is an equidigital number, since it uses as much as digits as its factorization.

1306061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42162.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1306061 is about 1142.8302586124. The cubic root of 1306061 is about 109.3086390376.

The spelling of 1306061 in words is "one million, three hundred six thousand, sixty-one".

Divisors: 1 31 42131 1306061