Search a number
-
+
308052271 = 2353252709
BaseRepresentation
bin10010010111001…
…000000100101111
3210110122200021101
4102113020010233
51112330133041
650322343531
710430254402
oct2227100457
9713580241
10308052271
1114898425a
12871baba7
134ba89c67
142ccabd39
151c09eb31
hex125c812f

308052271 has 8 divisors (see below), whose sum is σ = 327512160. Its totient is φ = 289097952.

The previous prime is 308052253. The next prime is 308052281. The reversal of 308052271 is 172250803.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-308052271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308052211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125136 + ... + 127573.

It is an arithmetic number, because the mean of its divisors is an integer number (40939020).

Almost surely, 2308052271 is an apocalyptic number.

308052271 is a deficient number, since it is larger than the sum of its proper divisors (19459889).

308052271 is a wasteful number, since it uses less digits than its factorization.

308052271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252785.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 308052271 is about 17551.4179199289. The cubic root of 308052271 is about 675.3695432363.

The spelling of 308052271 in words is "three hundred eight million, fifty-two thousand, two hundred seventy-one".

Divisors: 1 23 53 1219 252709 5812307 13393577 308052271