Search a number
-
+
38873305 = 517457333
BaseRepresentation
bin1001010001001…
…0100011011001
32201010222011001
42110102203121
534422421210
63505105001
7651263152
oct224224331
981128131
1038873305
111aa410a9
1211028161
138090a73
14523c929
15362d03a
hex25128d9

38873305 has 8 divisors (see below), whose sum is σ = 49392072. Its totient is φ = 29269248.

The previous prime is 38873291. The next prime is 38873309. The reversal of 38873305 is 50337883.

It can be written as a sum of positive squares in 4 ways, for example, as 9018009 + 29855296 = 3003^2 + 5464^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38873305 - 211 = 38871257 is a prime.

It is a super-2 number, since 2×388733052 = 3022267683246050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38873309) 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 7 ways as a sum of consecutive naturals, for example, 228582 + ... + 228751.

It is an arithmetic number, because the mean of its divisors is an integer number (6174009).

Almost surely, 238873305 is an apocalyptic number.

It is an amenable number.

38873305 is a deficient number, since it is larger than the sum of its proper divisors (10518767).

38873305 is a wasteful number, since it uses less digits than its factorization.

38873305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457355.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 38873305 is about 6234.8460285720. The cubic root of 38873305 is about 338.7535241074.

The spelling of 38873305 in words is "thirty-eight million, eight hundred seventy-three thousand, three hundred five".

Divisors: 1 5 17 85 457333 2286665 7774661 38873305