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1315401 = 3438467
BaseRepresentation
bin101000001001001001001
32110211101120
411001021021
5314043101
644105453
714115663
oct5011111
92424346
101315401
1181930a
12535289
13370959
14263533
151aeb36
hex141249

1315401 has 4 divisors (see below), whose sum is σ = 1753872. Its totient is φ = 876932.

The previous prime is 1315399. The next prime is 1315441. The reversal of 1315401 is 1045131.

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.

It is a cyclic number.

It is not a de Polignac number, because 1315401 - 21 = 1315399 is a prime.

It is a D-number.

1315401 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1315441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219231 + ... + 219236.

It is an arithmetic number, because the mean of its divisors is an integer number (438468).

21315401 is an apocalyptic number.

It is an amenable number.

1315401 is a deficient number, since it is larger than the sum of its proper divisors (438471).

1315401 is an equidigital number, since it uses as much as digits as its factorization.

1315401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438470.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1315401 is about 1146.9093250994. The cubic root of 1315401 is about 109.5685857096.

The spelling of 1315401 in words is "one million, three hundred fifteen thousand, four hundred one".

Divisors: 1 3 438467 1315401