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1442514431 = 1720783833
BaseRepresentation
bin101010111111011…
…0000010111111111
310201112100022210102
41111332300113333
510423240430211
6355050031315
750514112301
oct12576602777
93645308712
101442514431
11680297496
1234311853b
1319cb15947
14d981b971
1586991a3b
hex55fb05ff

1442514431 has 4 divisors (see below), whose sum is σ = 1442615472. Its totient is φ = 1442413392.

The previous prime is 1442514427. The next prime is 1442514443. The reversal of 1442514431 is 1344152441.

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 1442514431 - 22 = 1442514427 is a prime.

It is a super-2 number, since 2×14425144312 = 4161695767286507522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1442514394 and 1442514403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442514461) 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, 24710 + ... + 59123.

It is an arithmetic number, because the mean of its divisors is an integer number (360653868).

Almost surely, 21442514431 is an apocalyptic number.

1442514431 is a deficient number, since it is larger than the sum of its proper divisors (101041).

1442514431 is an equidigital number, since it uses as much as digits as its factorization.

1442514431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101040.

The product of its digits is 7680, while the sum is 29.

The square root of 1442514431 is about 37980.4480094693. The cubic root of 1442514431 is about 1129.9001219578.

Adding to 1442514431 its reverse (1344152441), we get a palindrome (2786666872).

The spelling of 1442514431 in words is "one billion, four hundred forty-two million, five hundred fourteen thousand, four hundred thirty-one".

Divisors: 1 17207 83833 1442514431