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342242751 = 3443257519
BaseRepresentation
bin10100011001100…
…011010110111111
3212211222201210110
4110121203112333
51200103232001
653543241103
711324005164
oct2431432677
9784881713
10342242751
11166207054
1296749193
1355b9b406
143364c06b
15200a53d6
hex146635bf

342242751 has 8 divisors (see below), whose sum is σ = 457355520. Its totient is φ = 227645912.

The previous prime is 342242743. The next prime is 342242753. The reversal of 342242751 is 157242243.

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

It is a cyclic number.

It is not a de Polignac number, because 342242751 - 23 = 342242743 is a prime.

It is a super-2 number, since 2×3422427512 = 234260201224096002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342242753) 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, 127431 + ... + 130088.

It is an arithmetic number, because the mean of its divisors is an integer number (57169440).

Almost surely, 2342242751 is an apocalyptic number.

342242751 is a deficient number, since it is larger than the sum of its proper divisors (115112769).

342242751 is a wasteful number, since it uses less digits than its factorization.

342242751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257965.

The product of its digits is 13440, while the sum is 30.

The square root of 342242751 is about 18499.8040800437. The cubic root of 342242751 is about 699.4844850681.

Adding to 342242751 its reverse (157242243), we get a palindrome (499484994).

The spelling of 342242751 in words is "three hundred forty-two million, two hundred forty-two thousand, seven hundred fifty-one".

Divisors: 1 3 443 1329 257519 772557 114080917 342242751