Search a number
-
+
404052271 = 71910132999
BaseRepresentation
bin11000000101010…
…101100100101111
31001011021222111221
4120011111210233
51311414133041
6104032124211
713004246650
oct3005254457
91034258457
10404052271
111980934a7
12b3396667
136592cbac
143b93b527
15257142d1
hex1815592f

404052271 has 16 divisors (see below), whose sum is σ = 486720000. Its totient is φ = 327669408.

The previous prime is 404052241. The next prime is 404052283. The reversal of 404052271 is 172250404.

It is a cyclic number.

It is not a de Polignac number, because 404052271 - 29 = 404051759 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 (404052221) 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, 133230 + ... + 136228.

It is an arithmetic number, because the mean of its divisors is an integer number (30420000).

Almost surely, 2404052271 is an apocalyptic number.

404052271 is a deficient number, since it is larger than the sum of its proper divisors (82667729).

404052271 is a wasteful number, since it uses less digits than its factorization.

404052271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4038.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 404052271 is about 20101.0514899097. The cubic root of 404052271 is about 739.2860602677.

The spelling of 404052271 in words is "four hundred four million, fifty-two thousand, two hundred seventy-one".

Divisors: 1 7 19 133 1013 2999 7091 19247 20993 56981 134729 398867 3037987 21265909 57721753 404052271