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1444320353 = 7293773911
BaseRepresentation
bin101011000010110…
…1001010001100001
310201122202002001102
41112011221101201
510424221222403
6355152444145
750535343340
oct12605512141
93648662042
101444320353
11681310293
12343849655
131a02c8938
14d9b6bb57
1586bebb88
hex56169461

1444320353 has 16 divisors (see below), whose sum is σ = 1660248576. Its totient is φ = 1230815040.

The previous prime is 1444320341. The next prime is 1444320467. The reversal of 1444320353 is 3530234441.

It is not a de Polignac number, because 1444320353 - 224 = 1427543137 is a prime.

It is a super-2 number, since 2×14443203532 = 4172122564180089218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1444320253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1584968 + ... + 1585878.

It is an arithmetic number, because the mean of its divisors is an integer number (103765536).

Almost surely, 21444320353 is an apocalyptic number.

It is an amenable number.

1444320353 is a deficient number, since it is larger than the sum of its proper divisors (215928223).

1444320353 is an equidigital number, since it uses as much as digits as its factorization.

1444320353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984.

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 1444320353 is about 38004.2149372935. The cubic root of 1444320353 is about 1130.3714426167.

Adding to 1444320353 its reverse (3530234441), we get a palindrome (4974554794).

The spelling of 1444320353 in words is "one billion, four hundred forty-four million, three hundred twenty thousand, three hundred fifty-three".

Divisors: 1 7 293 773 911 2051 5411 6377 226489 266923 704203 1585423 1868461 4929421 206331479 1444320353