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1244242343 = 2618347521
BaseRepresentation
bin100101000101001…
…1010000110100111
310012201021001121202
41022022122012213
510022011223333
6323244233115
742555612461
oct11212320647
93181231552
101244242343
11589384763
122a883b79b
1316aa14c96
14bb369131
15743795e8
hex4a29a1a7

1244242343 has 4 divisors (see below), whose sum is σ = 1244316048. Its totient is φ = 1244168640.

The previous prime is 1244242333. The next prime is 1244242403. The reversal of 1244242343 is 3432424421.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1244242343 - 210 = 1244241319 is a prime.

It is a super-2 number, since 2×12442423432 = 3096278016228259298, 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 (1244242333) 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, 2423 + ... + 49943.

It is an arithmetic number, because the mean of its divisors is an integer number (311079012).

Almost surely, 21244242343 is an apocalyptic number.

1244242343 is a deficient number, since it is larger than the sum of its proper divisors (73705).

1244242343 is an equidigital number, since it uses as much as digits as its factorization.

1244242343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73704.

The product of its digits is 18432, while the sum is 29.

The square root of 1244242343 is about 35273.8195124940. The cubic root of 1244242343 is about 1075.5608662937.

Adding to 1244242343 its reverse (3432424421), we get a palindrome (4676666764).

The spelling of 1244242343 in words is "one billion, two hundred forty-four million, two hundred forty-two thousand, three hundred forty-three".

Divisors: 1 26183 47521 1244242343