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1430066845 = 5286013369
BaseRepresentation
bin101010100111101…
…0001011010011101
310200122220220220201
41111033101122131
510412044114340
6353523143501
750303240044
oct12517213235
93618826821
101430066845
11674265429
1233ab14b91
1319a377ccc
14d7cdb55b
158583379a
hex553d169d

1430066845 has 4 divisors (see below), whose sum is σ = 1716080220. Its totient is φ = 1144053472.

The previous prime is 1430066819. The next prime is 1430066849. The reversal of 1430066845 is 5486600341.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5486600341 = 19288768439.

It can be written as a sum of positive squares in 2 ways, for example, as 834169924 + 595896921 = 28882^2 + 24411^2 .

It is a cyclic number.

It is not a de Polignac number, because 1430066845 - 215 = 1430034077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1430066849) 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, 143006680 + ... + 143006689.

It is an arithmetic number, because the mean of its divisors is an integer number (429020055).

Almost surely, 21430066845 is an apocalyptic number.

It is an amenable number.

1430066845 is a deficient number, since it is larger than the sum of its proper divisors (286013375).

1430066845 is an equidigital number, since it uses as much as digits as its factorization.

1430066845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286013374.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 1430066845 is about 37816.2246264748. The cubic root of 1430066845 is about 1126.6407256359.

The spelling of 1430066845 in words is "one billion, four hundred thirty million, sixty-six thousand, eight hundred forty-five".

Divisors: 1 5 286013369 1430066845