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1431143012 = 221327521981
BaseRepresentation
bin101010101001101…
…1000001001100100
310200201221121010202
41111103120021210
510412333034022
6354002210032
750315341415
oct12523301144
93621847122
101431143012
1167492aa22
1233b353918
1319a663ab0
14d80db80c
1585997592
hex554d8264

1431143012 has 12 divisors (see below), whose sum is σ = 2697154236. Its totient is φ = 660527520.

The previous prime is 1431143009. The next prime is 1431143039. The reversal of 1431143012 is 2103411341.

It can be written as a sum of positive squares in 2 ways, for example, as 58736896 + 1372406116 = 7664^2 + 37046^2 .

It is a super-3 number, since 3×14311430123 (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13760939 + ... + 13761042.

It is an arithmetic number, because the mean of its divisors is an integer number (224762853).

Almost surely, 21431143012 is an apocalyptic number.

It is an amenable number.

1431143012 is a deficient number, since it is larger than the sum of its proper divisors (1266011224).

1431143012 is a wasteful number, since it uses less digits than its factorization.

1431143012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27521998 (or 27521996 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1431143012 is about 37830.4508564199. The cubic root of 1431143012 is about 1126.9232647739.

Adding to 1431143012 its reverse (2103411341), we get a palindrome (3534554353).

The spelling of 1431143012 in words is "one billion, four hundred thirty-one million, one hundred forty-three thousand, twelve".

Divisors: 1 2 4 13 26 52 27521981 55043962 110087924 357785753 715571506 1431143012