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705066001 = 3891812509
BaseRepresentation
bin101010000001100…
…111010000010001
31211010201001201121
4222001213100101
52420444103001
6153544002241
723320651003
oct5201472021
91733631647
10705066001
11331a9a582
12178160381
13b30c4223
14698d6373
1541d736a1
hex2a067411

705066001 has 4 divisors (see below), whose sum is σ = 706878900. Its totient is φ = 703253104.

The previous prime is 705065987. The next prime is 705066017. The reversal of 705066001 is 100660507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100660507 = 159763031.

It can be written as a sum of positive squares in 2 ways, for example, as 228735376 + 476330625 = 15124^2 + 21825^2 .

It is a cyclic number.

It is not a de Polignac number, because 705066001 - 29 = 705065489 is a prime.

It is a super-2 number, since 2×7050660012 = 994236131532264002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (705066031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905866 + ... + 906643.

It is an arithmetic number, because the mean of its divisors is an integer number (176719725).

Almost surely, 2705066001 is an apocalyptic number.

It is an amenable number.

705066001 is a deficient number, since it is larger than the sum of its proper divisors (1812899).

705066001 is a wasteful number, since it uses less digits than its factorization.

705066001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812898.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 705066001 is about 26553.0789363494. The cubic root of 705066001 is about 890.0408183105.

The spelling of 705066001 in words is "seven hundred five million, sixty-six thousand, one".

Divisors: 1 389 1812509 705066001