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1284052001 = 2634882327
BaseRepresentation
bin100110010001001…
…0001010000100001
310022111011121012112
41030202101100201
510112204131001
6331225405105
743551155561
oct11442212041
93274147175
101284052001
115a98a5301
122ba039795
13176042cab
14c276cda1
1577adecbb
hex4c891421

1284052001 has 4 divisors (see below), whose sum is σ = 1288934592. Its totient is φ = 1279169412.

The previous prime is 1284051983. The next prime is 1284052031. The reversal of 1284052001 is 1002504821.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1002504821 = 3532839957.

It is a cyclic number.

It is not a de Polignac number, because 1284052001 - 226 = 1216943137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1284052031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2440901 + ... + 2441426.

It is an arithmetic number, because the mean of its divisors is an integer number (322233648).

Almost surely, 21284052001 is an apocalyptic number.

It is an amenable number.

1284052001 is a deficient number, since it is larger than the sum of its proper divisors (4882591).

1284052001 is an equidigital number, since it uses as much as digits as its factorization.

1284052001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4882590.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 1284052001 is about 35833.6713301889. The cubic root of 1284052001 is about 1086.9115505143.

Adding to 1284052001 its reverse (1002504821), we get a palindrome (2286556822).

The spelling of 1284052001 in words is "one billion, two hundred eighty-four million, fifty-two thousand, one".

Divisors: 1 263 4882327 1284052001