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342303213 = 37149109397
BaseRepresentation
bin10100011001110…
…010000111101101
3212212002210201210
4110121302013231
51200112200323
653544425033
711324346360
oct2431620755
9785083653
10342303213
1116624851a
1296778179
1355bbcaa5
14336660d7
15200b8293
hex146721ed

342303213 has 16 divisors (see below), whose sum is σ = 525110400. Its totient is φ = 194287296.

The previous prime is 342303197. The next prime is 342303223. The reversal of 342303213 is 312303243.

It is not a de Polignac number, because 342303213 - 24 = 342303197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 342303213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342303223) 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, 51570 + ... + 57827.

It is an arithmetic number, because the mean of its divisors is an integer number (32819400).

Almost surely, 2342303213 is an apocalyptic number.

It is an amenable number.

342303213 is a deficient number, since it is larger than the sum of its proper divisors (182807187).

342303213 is a wasteful number, since it uses less digits than its factorization.

342303213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109556.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 342303213 is about 18501.4381332912. The cubic root of 342303213 is about 699.5256739032.

Adding to 342303213 its reverse (312303243), we get a palindrome (654606456).

The spelling of 342303213 in words is "three hundred forty-two million, three hundred three thousand, two hundred thirteen".

Divisors: 1 3 7 21 149 447 1043 3129 109397 328191 765779 2297337 16300153 48900459 114101071 342303213