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1140300361 = 1278978743
BaseRepresentation
bin100001111110111…
…1001101001001001
32221110200021000201
41003331321221021
54313404102421
6305052332201
740154251564
oct10375715111
92843607021
101140300361
115357405a2
12279a74061
13152321155
14ab62d4db
156a196b91
hex43f79a49

1140300361 has 4 divisors (see below), whose sum is σ = 1149279232. Its totient is φ = 1131321492.

The previous prime is 1140300349. The next prime is 1140300377. The reversal of 1140300361 is 1630030411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1140300361 - 213 = 1140292169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140300061) 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 3 ways as a sum of consecutive naturals, for example, 4489245 + ... + 4489498.

It is an arithmetic number, because the mean of its divisors is an integer number (287319808).

Almost surely, 21140300361 is an apocalyptic number.

It is an amenable number.

1140300361 is a deficient number, since it is larger than the sum of its proper divisors (8978871).

1140300361 is an equidigital number, since it uses as much as digits as its factorization.

1140300361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8978870.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1140300361 is about 33768.3337018574. Note that the first 3 decimals coincide. The cubic root of 1140300361 is about 1044.7356644661.

Adding to 1140300361 its reverse (1630030411), we get a palindrome (2770330772).

The spelling of 1140300361 in words is "one billion, one hundred forty million, three hundred thousand, three hundred sixty-one".

Divisors: 1 127 8978743 1140300361