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1430111 = 1975269
BaseRepresentation
bin101011101001001011111
32200122202002
411131021133
5331230421
650352515
715104264
oct5351137
92618662
101430111
11897511
1258b73b
133b0c27
1429326b
151d3b0b
hex15d25f

1430111 has 4 divisors (see below), whose sum is σ = 1505400. Its totient is φ = 1354824.

The previous prime is 1430089. The next prime is 1430119. The reversal of 1430111 is 1110341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1110341 = 1958439.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1430111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1430092 and 1430101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1430119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37616 + ... + 37653.

It is an arithmetic number, because the mean of its divisors is an integer number (376350).

21430111 is an apocalyptic number.

1430111 is a deficient number, since it is larger than the sum of its proper divisors (75289).

1430111 is an equidigital number, since it uses as much as digits as its factorization.

1430111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75288.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1430111 is about 1195.8724848411. The cubic root of 1430111 is about 112.6652320970.

Adding to 1430111 its reverse (1110341), we get a palindrome (2540452).

The spelling of 1430111 in words is "one million, four hundred thirty thousand, one hundred eleven".

Divisors: 1 19 75269 1430111