Search a number
-
+
348613 = 893917
BaseRepresentation
bin1010101000111000101
3122201012121
41111013011
542123423
611245541
72651236
oct1250705
9581177
10348613
11218a11
121498b1
13c28a5
149108d
156d45d
hex551c5

348613 has 4 divisors (see below), whose sum is σ = 352620. Its totient is φ = 344608.

The previous prime is 348587. The next prime is 348617. The reversal of 348613 is 316843.

It can be divided in two parts, 348 and 613, that added together give a square (961 = 312).

348613 = 4172 + 4182.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 316843 = 674729.

It can be written as a sum of positive squares in 2 ways, for example, as 174724 + 173889 = 418^2 + 417^2 .

It is a de Polignac number, because none of the positive numbers 2k-348613 is a prime.

It is a Duffinian number.

348613 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (348617) 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, 1870 + ... + 2047.

It is an arithmetic number, because the mean of its divisors is an integer number (88155).

2348613 is an apocalyptic number.

348613 is the 418-th centered square number.

It is an amenable number.

348613 is a deficient number, since it is larger than the sum of its proper divisors (4007).

348613 is an equidigital number, since it uses as much as digits as its factorization.

348613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4006.

The product of its digits is 1728, while the sum is 25.

The square root of 348613 is about 590.4345857078. The cubic root of 348613 is about 70.3797726194.

The spelling of 348613 in words is "three hundred forty-eight thousand, six hundred thirteen".

Divisors: 1 89 3917 348613