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1214143 = 7295981
BaseRepresentation
bin100101000011010111111
32021200111021
410220122333
5302323033
642005011
713214530
oct4503277
92250437
101214143
1175a227
124a6767
13336838
14238687
1518eb2d
hex1286bf

1214143 has 8 divisors (see below), whose sum is σ = 1435680. Its totient is φ = 1004640.

The previous prime is 1214141. The next prime is 1214159. The reversal of 1214143 is 3414121.

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

It is not a de Polignac number, because 1214143 - 21 = 1214141 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

1214143 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214141) 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, 2788 + ... + 3193.

It is an arithmetic number, because the mean of its divisors is an integer number (179460).

21214143 is an apocalyptic number.

1214143 is a deficient number, since it is larger than the sum of its proper divisors (221537).

1214143 is an equidigital number, since it uses as much as digits as its factorization.

1214143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6017.

The product of its digits is 96, while the sum is 16.

The square root of 1214143 is about 1101.8815725839. The cubic root of 1214143 is about 106.6817046941.

Adding to 1214143 its reverse (3414121), we get a palindrome (4628264).

The spelling of 1214143 in words is "one million, two hundred fourteen thousand, one hundred forty-three".

Divisors: 1 7 29 203 5981 41867 173449 1214143