Search a number
-
+
3098431 = 7442633
BaseRepresentation
bin1011110100011100111111
312211102020201
423310130333
51243122211
6150224331
735223220
oct13643477
95742221
103098431
111826996
1210550a7
138463bb
145a9247
154130c1
hex2f473f

3098431 has 4 divisors (see below), whose sum is σ = 3541072. Its totient is φ = 2655792.

The previous prime is 3098429. The next prime is 3098443. The reversal of 3098431 is 1348903.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3098431 - 21 = 3098429 is a prime.

It is a super-2 number, since 2×30984312 = 19200549323522, which contains 22 as substring.

It is an Ulam number.

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 3098431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3098531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221310 + ... + 221323.

It is an arithmetic number, because the mean of its divisors is an integer number (885268).

Almost surely, 23098431 is an apocalyptic number.

3098431 is a deficient number, since it is larger than the sum of its proper divisors (442641).

3098431 is an equidigital number, since it uses as much as digits as its factorization.

3098431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442640.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 3098431 is about 1760.2360637142. The cubic root of 3098431 is about 145.7853698777.

The spelling of 3098431 in words is "three million, ninety-eight thousand, four hundred thirty-one".

Divisors: 1 7 442633 3098431