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426620741 = 3491222409
BaseRepresentation
bin11001011011011…
…011011101000101
31002201202120122012
4121123123131011
51333203330431
6110155544005
713400134151
oct3133333505
91081676565
10426620741
111a98a8528
12baa5b005
136a502411
1440934061
15276c122b
hex196db745

426620741 has 4 divisors (see below), whose sum is σ = 427843500. Its totient is φ = 425397984.

The previous prime is 426620713. The next prime is 426620743. The reversal of 426620741 is 147026624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 113507716 + 313113025 = 10654^2 + 17695^2 .

It is a cyclic number.

It is not a de Polignac number, because 426620741 - 214 = 426604357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 426620698 and 426620707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426620743) 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, 610856 + ... + 611553.

It is an arithmetic number, because the mean of its divisors is an integer number (106960875).

Almost surely, 2426620741 is an apocalyptic number.

It is an amenable number.

426620741 is a deficient number, since it is larger than the sum of its proper divisors (1222759).

426620741 is a wasteful number, since it uses less digits than its factorization.

426620741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222758.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 426620741 is about 20654.7994664678. The cubic root of 426620741 is about 752.8018110688.

The spelling of 426620741 in words is "four hundred twenty-six million, six hundred twenty thousand, seven hundred forty-one".

Divisors: 1 349 1222409 426620741