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1444013 = 73131151
BaseRepresentation
bin101100000100010101101
32201100210222
411200202231
5332202023
650541125
715162644
oct5404255
92640728
101444013
118a69aa
125977a5
133b735c
1429835b
151d7cc8
hex1608ad

1444013 has 8 divisors (see below), whose sum is σ = 1484736. Its totient is φ = 1404000.

The previous prime is 1444007. The next prime is 1444043. The reversal of 1444013 is 3104441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1444013 - 210 = 1442989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1443982 and 1444000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9488 + ... + 9638.

It is an arithmetic number, because the mean of its divisors is an integer number (185592).

21444013 is an apocalyptic number.

It is an amenable number.

1444013 is a deficient number, since it is larger than the sum of its proper divisors (40723).

1444013 is a wasteful number, since it uses less digits than its factorization.

1444013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1444013 is about 1201.6709200110. The cubic root of 1444013 is about 113.0291255489.

Adding to 1444013 its reverse (3104441), we get a palindrome (4548454).

The spelling of 1444013 in words is "one million, four hundred forty-four thousand, thirteen".

Divisors: 1 73 131 151 9563 11023 19781 1444013