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354242131 = 1181299951
BaseRepresentation
bin10101000111010…
…100111001010011
3220200120100211221
4111013110321103
51211141222011
655052345511
711531002615
oct2507247123
9820510757
10354242131
11171a623a1
129a775297
1358510039
1435092db5
1521175971
hex151d4e53

354242131 has 4 divisors (see below), whose sum is σ = 354543264. Its totient is φ = 353941000.

The previous prime is 354242129. The next prime is 354242183. The reversal of 354242131 is 131242453.

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 354242131 - 21 = 354242129 is a prime.

It is a super-3 number, since 3×3542421313 (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 junction number, because it is equal to n+sod(n) for n = 354242096 and 354242105.

It is not an unprimeable number, because it can be changed into a prime (354242101) 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, 148795 + ... + 151156.

It is an arithmetic number, because the mean of its divisors is an integer number (88635816).

Almost surely, 2354242131 is an apocalyptic number.

354242131 is a deficient number, since it is larger than the sum of its proper divisors (301133).

354242131 is a wasteful number, since it uses less digits than its factorization.

354242131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301132.

The product of its digits is 2880, while the sum is 25.

The square root of 354242131 is about 18821.3211810436. The cubic root of 354242131 is about 707.5656436239.

Adding to 354242131 its reverse (131242453), we get a palindrome (485484584).

The spelling of 354242131 in words is "three hundred fifty-four million, two hundred forty-two thousand, one hundred thirty-one".

Divisors: 1 1181 299951 354242131