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1315117 = 2357179
BaseRepresentation
bin101000001000100101101
32110211000001
411001010231
5314040432
644104301
714115106
oct5010455
92424001
101315117
11819081
12535091
1337079b
142633ad
151ae9e7
hex14112d

1315117 has 4 divisors (see below), whose sum is σ = 1372320. Its totient is φ = 1257916.

The previous prime is 1315087. The next prime is 1315151. The reversal of 1315117 is 7115131.

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: 7115131 = 21133721.

It is not a de Polignac number, because 1315117 - 211 = 1313069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1315094 and 1315103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315177) 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, 28567 + ... + 28612.

It is an arithmetic number, because the mean of its divisors is an integer number (343080).

21315117 is an apocalyptic number.

It is an amenable number.

1315117 is a deficient number, since it is larger than the sum of its proper divisors (57203).

1315117 is an equidigital number, since it uses as much as digits as its factorization.

1315117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57202.

The product of its digits is 105, while the sum is 19.

The square root of 1315117 is about 1146.7855074076. The cubic root of 1315117 is about 109.5606997194.

The spelling of 1315117 in words is "one million, three hundred fifteen thousand, one hundred seventeen".

Divisors: 1 23 57179 1315117