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42233845 = 553197809
BaseRepresentation
bin1010000100011…
…0111111110101
32221110200221111
42201012333311
541302440340
64105115021
71021660513
oct241067765
987420844
1042233845
1121926a05
1212188a71
138999554
1458754b3
153a93aea
hex2846ff5

42233845 has 16 divisors (see below), whose sum is σ = 51963120. Its totient is φ = 32940544.

The previous prime is 42233843. The next prime is 42233879. The reversal of 42233845 is 54833224.

It can be written as a sum of positive squares in 8 ways, for example, as 12716356 + 29517489 = 3566^2 + 5433^2 .

It is a cyclic number.

It is not a de Polignac number, because 42233845 - 21 = 42233843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42233843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51801 + ... + 52609.

It is an arithmetic number, because the mean of its divisors is an integer number (3247695).

Almost surely, 242233845 is an apocalyptic number.

It is an amenable number.

42233845 is a deficient number, since it is larger than the sum of its proper divisors (9729275).

42233845 is a wasteful number, since it uses less digits than its factorization.

42233845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064.

The product of its digits is 23040, while the sum is 31.

The square root of 42233845 is about 6498.7571888785. The cubic root of 42233845 is about 348.2465910906.

The spelling of 42233845 in words is "forty-two million, two hundred thirty-three thousand, eight hundred forty-five".

Divisors: 1 5 53 197 265 809 985 4045 10441 42877 52205 159373 214385 796865 8446769 42233845