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1444142031 = 3481380677
BaseRepresentation
bin101011000010011…
…1101101111001111
310201122102000102220
41112010331233033
510424200021111
6355144550423
750534001423
oct12604755717
93648360386
101444142031
116811a9312
12343782413
131a0265717
14d9b22b83
1586bb3e06
hex5613dbcf

1444142031 has 4 divisors (see below), whose sum is σ = 1925522712. Its totient is φ = 962761352.

The previous prime is 1444141961. The next prime is 1444142081. The reversal of 1444142031 is 1302414441.

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 1444142031 - 27 = 1444141903 is a prime.

It is a super-2 number, since 2×14441420312 = 4171092411401609922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1444141992 and 1444142010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444142081) 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, 240690336 + ... + 240690341.

It is an arithmetic number, because the mean of its divisors is an integer number (481380678).

Almost surely, 21444142031 is an apocalyptic number.

1444142031 is a deficient number, since it is larger than the sum of its proper divisors (481380681).

1444142031 is an equidigital number, since it uses as much as digits as its factorization.

1444142031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481380680.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1444142031 is about 38001.8687829954. The cubic root of 1444142031 is about 1130.3249205294.

Adding to 1444142031 its reverse (1302414441), we get a palindrome (2746556472).

The spelling of 1444142031 in words is "one billion, four hundred forty-four million, one hundred forty-two thousand, thirty-one".

Divisors: 1 3 481380677 1444142031