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1342001231 = 1559860809
BaseRepresentation
bin100111111111101…
…0101000001001111
310110112012201121022
41033333111001033
510222023014411
6341055424355
745153552014
oct11777250117
93415181538
101342001231
1162958542a
123155250bb
1318505268c
14ca33570b
157cc39edb
hex4ffd504f

1342001231 has 4 divisors (see below), whose sum is σ = 1342863600. Its totient is φ = 1341138864.

The previous prime is 1342001209. The next prime is 1342001239. The reversal of 1342001231 is 1321002431.

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

It is a cyclic number.

It is not a de Polignac number, because 1342001231 - 210 = 1342000207 is a prime.

It is a super-2 number, since 2×13420012312 = 3601934608011030722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342001239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428846 + ... + 431963.

It is an arithmetic number, because the mean of its divisors is an integer number (335715900).

Almost surely, 21342001231 is an apocalyptic number.

1342001231 is a deficient number, since it is larger than the sum of its proper divisors (862369).

1342001231 is an equidigital number, since it uses as much as digits as its factorization.

1342001231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862368.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1342001231 is about 36633.3349696694. The cubic root of 1342001231 is about 1103.0223304694.

Adding to 1342001231 its reverse (1321002431), we get a palindrome (2663003662).

The spelling of 1342001231 in words is "one billion, three hundred forty-two million, one thousand, two hundred thirty-one".

Divisors: 1 1559 860809 1342001231