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395143 = 7192971
BaseRepresentation
bin1100000011110000111
3202002000221
41200132013
5100121033
612245211
73234010
oct1403607
9662027
10395143
1124a971
12170807
1310ab18
14a4007
157c12d
hex60787

395143 has 8 divisors (see below), whose sum is σ = 475520. Its totient is φ = 320760.

The previous prime is 395141. The next prime is 395147. The reversal of 395143 is 341593.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 395143 - 21 = 395141 is a prime.

It is a super-2 number, since 2×3951432 = 312275980898, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1353 + ... + 1618.

It is an arithmetic number, because the mean of its divisors is an integer number (59440).

2395143 is an apocalyptic number.

395143 is a deficient number, since it is larger than the sum of its proper divisors (80377).

395143 is a wasteful number, since it uses less digits than its factorization.

395143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997.

The product of its digits is 1620, while the sum is 25.

The square root of 395143 is about 628.6040088959. The cubic root of 395143 is about 73.3811923589.

The spelling of 395143 in words is "three hundred ninety-five thousand, one hundred forty-three".

Divisors: 1 7 19 133 2971 20797 56449 395143