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354242231 = 7113447841
BaseRepresentation
bin10101000111010…
…100111010110111
3220200120100222122
4111013110322313
51211141222411
655052350155
711531003120
oct2507247267
9820510878
10354242231
11171a62482
129a77535b
13585100b5
1435093047
15211759db
hex151d4eb7

354242231 has 8 divisors (see below), whose sum is σ = 408431904. Its totient is φ = 300948480.

The previous prime is 354242201. The next prime is 354242269. The reversal of 354242231 is 132242453.

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

It is a de Polignac number, because none of the positive numbers 2k-354242231 is a prime.

It is a super-3 number, since 3×3542422313 (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 354242231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354242201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223130 + ... + 224711.

It is an arithmetic number, because the mean of its divisors is an integer number (51053988).

Almost surely, 2354242231 is an apocalyptic number.

354242231 is a deficient number, since it is larger than the sum of its proper divisors (54189673).

354242231 is a wasteful number, since it uses less digits than its factorization.

354242231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447961.

The product of its digits is 5760, while the sum is 26.

The square root of 354242231 is about 18821.3238376050. The cubic root of 354242231 is about 707.5657102041.

Adding to 354242231 its reverse (132242453), we get a palindrome (486484684).

It can be divided in two parts, 3542422 and 31, that added together give a palindrome (3542453).

The spelling of 354242231 in words is "three hundred fifty-four million, two hundred forty-two thousand, two hundred thirty-one".

Divisors: 1 7 113 791 447841 3134887 50606033 354242231