Search a number
-
+
3405231 = 3271732
BaseRepresentation
bin1100111111010110101111
320102000002200
430333112233
51332431411
6200552543
740641534
oct14772657
96360080
103405231
111a16445
121182753
13922c3b
14648d8b
15473e56
hex33f5af

3405231 has 18 divisors (see below), whose sum is σ = 5057208. Its totient is φ = 2207520.

The previous prime is 3405217. The next prime is 3405247. The reversal of 3405231 is 1325043.

It is not a de Polignac number, because 3405231 - 26 = 3405167 is a prime.

It is a super-2 number, since 2×34052312 = 23191196326722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3405131) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 46611 + ... + 46683.

It is an arithmetic number, because the mean of its divisors is an integer number (280956).

Almost surely, 23405231 is an apocalyptic number.

3405231 is a deficient number, since it is larger than the sum of its proper divisors (1651977).

3405231 is an equidigital number, since it uses as much as digits as its factorization.

3405231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 3405231 is about 1845.3268003256. The cubic root of 3405231 is about 150.4465360513.

The spelling of 3405231 in words is "three million, four hundred five thousand, two hundred thirty-one".

Divisors: 1 3 9 71 73 213 219 639 657 5183 5329 15549 15987 46647 47961 378359 1135077 3405231