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1440012014 = 271923534441
BaseRepresentation
bin101010111010100…
…1101011011101110
310201100122012010022
41111311031123232
510422120341024
6354520242142
750453620520
oct12565153356
93640565108
101440012014
11679938381
12342310352
1319c44a91c
14d9369a10
158664a35e
hex55d4d6ee

1440012014 has 64 divisors (see below), whose sum is σ = 2763279360. Its totient is φ = 548570880.

The previous prime is 1440012001. The next prime is 1440012017. The reversal of 1440012014 is 4102100441.

It is a junction number, because it is equal to n+sod(n) for n = 1440011983 and 1440012001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440012017) 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 31 ways as a sum of consecutive naturals, for example, 322034 + ... + 326474.

It is an arithmetic number, because the mean of its divisors is an integer number (43176240).

Almost surely, 21440012014 is an apocalyptic number.

1440012014 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1440012014 is a deficient number, since it is larger than the sum of its proper divisors (1323267346).

1440012014 is a wasteful number, since it uses less digits than its factorization.

1440012014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1440012014 is about 37947.4902200396. The cubic root of 1440012014 is about 1129.2463750948.

Adding to 1440012014 its reverse (4102100441), we get a palindrome (5542112455).

The spelling of 1440012014 in words is "one billion, four hundred forty million, twelve thousand, fourteen".

Divisors: 1 2 7 14 19 23 38 46 53 106 133 161 266 322 371 437 742 874 1007 1219 2014 2438 3059 4441 6118 7049 8533 8882 14098 17066 23161 31087 46322 62174 84379 102143 162127 168758 204286 235373 324254 470746 590653 715001 1181306 1430002 1647611 1940717 3295222 3881434 4472087 5413579 8944174 10827158 13585019 27170038 31304609 37895053 62609218 75790106 102858001 205716002 720006007 1440012014