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1130143405 = 5226028681
BaseRepresentation
bin100001101011100…
…1001111010101101
32220202120020022011
41003113021322231
54303304042110
6304050521221
740002026506
oct10327117255
92822506264
101130143405
1152aa33516
12276596211
131501a6011
14aa147bad
156933c48a
hex435c9ead

1130143405 has 4 divisors (see below), whose sum is σ = 1356172092. Its totient is φ = 904114720.

The previous prime is 1130143381. The next prime is 1130143447. The reversal of 1130143405 is 5043410311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5043410311 = 30411658471.

It can be written as a sum of positive squares in 2 ways, for example, as 474629796 + 655513609 = 21786^2 + 25603^2 .

It is not a de Polignac number, because 1130143405 - 25 = 1130143373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 113014336 + ... + 113014345.

It is an arithmetic number, because the mean of its divisors is an integer number (339043023).

Almost surely, 21130143405 is an apocalyptic number.

It is an amenable number.

1130143405 is a deficient number, since it is larger than the sum of its proper divisors (226028687).

1130143405 is an equidigital number, since it uses as much as digits as its factorization.

1130143405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226028686.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1130143405 is about 33617.6055810047. The cubic root of 1130143405 is about 1041.6244967533.

Adding to 1130143405 its reverse (5043410311), we get a palindrome (6173553716).

The spelling of 1130143405 in words is "one billion, one hundred thirty million, one hundred forty-three thousand, four hundred five".

Divisors: 1 5 226028681 1130143405