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1395013 = 5326321
BaseRepresentation
bin101010100100101000101
32121212121011
411110211011
5324120023
645522221
714600044
oct5244505
92555534
101395013
11873104
12573371
1339ac69
1428455b
151c850d
hex154945

1395013 has 4 divisors (see below), whose sum is σ = 1421388. Its totient is φ = 1368640.

The previous prime is 1395001. The next prime is 1395029. The reversal of 1395013 is 3105931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1181569 + 213444 = 1087^2 + 462^2 .

It is a cyclic number.

It is not a de Polignac number, because 1395013 - 29 = 1394501 is a prime.

It is a super-2 number, since 2×13950132 = 3892122540338, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 (1395073) 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, 13108 + ... + 13213.

It is an arithmetic number, because the mean of its divisors is an integer number (355347).

21395013 is an apocalyptic number.

It is an amenable number.

1395013 is a deficient number, since it is larger than the sum of its proper divisors (26375).

1395013 is an equidigital number, since it uses as much as digits as its factorization.

1395013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26374.

The product of its (nonzero) digits is 405, while the sum is 22.

The square root of 1395013 is about 1181.1066844278. The cubic root of 1395013 is about 111.7359051801.

The spelling of 1395013 in words is "one million, three hundred ninety-five thousand, thirteen".

Divisors: 1 53 26321 1395013