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1440108137 = 13162768087
BaseRepresentation
bin101010111010110…
…0100111001101001
310201100211001222102
41111311210321221
510422131430022
6354522303145
750454500666
oct12565447151
93640731872
101440108137
116799a3616
12342357ab5
1319c4825c0
14d9392a6d
1586668a92
hex55d64e69

1440108137 has 8 divisors (see below), whose sum is σ = 1551861696. Its totient is φ = 1328494032.

The previous prime is 1440108133. The next prime is 1440108139. The reversal of 1440108137 is 7318010441.

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 1440108137 - 22 = 1440108133 is a prime.

It is a super-2 number, since 2×14401081372 = 4147822892507221538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1440108133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12893 + ... + 55194.

It is an arithmetic number, because the mean of its divisors is an integer number (193982712).

Almost surely, 21440108137 is an apocalyptic number.

It is an amenable number.

1440108137 is a deficient number, since it is larger than the sum of its proper divisors (111753559).

1440108137 is a wasteful number, since it uses less digits than its factorization.

1440108137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69727.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 1440108137 is about 37948.7567253527. The cubic root of 1440108137 is about 1129.2715008422.

Adding to 1440108137 its reverse (7318010441), we get a palindrome (8758118578).

The spelling of 1440108137 in words is "one billion, four hundred forty million, one hundred eight thousand, one hundred thirty-seven".

Divisors: 1 13 1627 21151 68087 885131 110777549 1440108137