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1318141 = 11119831
BaseRepresentation
bin101000001110011111101
32110222011001
411001303331
5314140031
644130301
714126656
oct5016375
92428131
101318141
11820380
12536991
13371c86
1426452d
151b0861
hex141cfd

1318141 has 4 divisors (see below), whose sum is σ = 1437984. Its totient is φ = 1198300.

The previous prime is 1318139. The next prime is 1318147. The reversal of 1318141 is 1418131.

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 1318141 - 21 = 1318139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318147) 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, 59905 + ... + 59926.

It is an arithmetic number, because the mean of its divisors is an integer number (359496).

21318141 is an apocalyptic number.

1318141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1318141 is a deficient number, since it is larger than the sum of its proper divisors (119843).

1318141 is a wasteful number, since it uses less digits than its factorization.

1318141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119842.

The product of its digits is 96, while the sum is 19.

The square root of 1318141 is about 1148.1032183563. The cubic root of 1318141 is about 109.6446106158.

The spelling of 1318141 in words is "one million, three hundred eighteen thousand, one hundred forty-one".

Divisors: 1 11 119831 1318141