Search a number
-
+
38253287 = 314130097
BaseRepresentation
bin1001000111101…
…1001011100111
32122222110122102
42101323023213
534243101122
63443522315
7643101422
oct221731347
978873572
1038253287
111a658296
121098939b
137c047a7
14511a9b9
153559492
hex247b2e7

38253287 has 8 divisors (see below), whose sum is σ = 40451712. Its totient is φ = 36115200.

The previous prime is 38253239. The next prime is 38253307. The reversal of 38253287 is 78235283.

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 38253287 - 28 = 38253031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38253287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38252287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13778 + ... + 16319.

It is an arithmetic number, because the mean of its divisors is an integer number (5056464).

Almost surely, 238253287 is an apocalyptic number.

38253287 is a deficient number, since it is larger than the sum of its proper divisors (2198425).

38253287 is a wasteful number, since it uses less digits than its factorization.

38253287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30169.

The product of its digits is 80640, while the sum is 38.

The square root of 38253287 is about 6184.9241709175. The cubic root of 38253287 is about 336.9428561751.

The spelling of 38253287 in words is "thirty-eight million, two hundred fifty-three thousand, two hundred eighty-seven".

Divisors: 1 31 41 1271 30097 933007 1233977 38253287