Search a number
-
+
344742 = 2357457
BaseRepresentation
bin1010100001010100110
3122111220020
41110022212
542012432
611220010
72634036
oct1241246
9574806
10344742
11216012
12147606
13c0bb8
148d8c6
156c22c
hex542a6

344742 has 8 divisors (see below), whose sum is σ = 689496. Its totient is φ = 114912.

The previous prime is 344719. The next prime is 344749. The reversal of 344742 is 247443.

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

344742 is an admirable number.

It is an Ulam number.

It is a d-powerful number, because it can be written as 35 + 4 + 75 + 48 + 49 + 23 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344749) by changing a digit.

344742 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28723 + ... + 28734.

It is an arithmetic number, because the mean of its divisors is an integer number (86187).

2344742 is an apocalyptic number.

344742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

344742 is a wasteful number, since it uses less digits than its factorization.

344742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57462.

The product of its digits is 2688, while the sum is 24.

The square root of 344742 is about 587.1473409631. The cubic root of 344742 is about 70.1183033504.

The spelling of 344742 in words is "three hundred forty-four thousand, seven hundred forty-two", and thus it is an iban number.

Divisors: 1 2 3 6 57457 114914 172371 344742