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342317281 = 1943418993
BaseRepresentation
bin10100011001110…
…101100011100001
3212212010112000211
4110121311203201
51200113123111
653545014121
711324435365
oct2431654341
9785115024
10342317281
11166258049
1296784341
1355bc6307
143366b2a5
15200bc521
hex146758e1

342317281 has 8 divisors (see below), whose sum is σ = 368714720. Its totient is φ = 316757952.

The previous prime is 342317263. The next prime is 342317317. The reversal of 342317281 is 182713243.

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

It is not a de Polignac number, because 342317281 - 215 = 342284513 is a prime.

It is a super-2 number, since 2×3423172812 = 234362241742465922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342317201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208680 + ... + 210313.

It is an arithmetic number, because the mean of its divisors is an integer number (46089340).

Almost surely, 2342317281 is an apocalyptic number.

It is an amenable number.

342317281 is a deficient number, since it is larger than the sum of its proper divisors (26397439).

342317281 is a wasteful number, since it uses less digits than its factorization.

342317281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419055.

The product of its digits is 8064, while the sum is 31.

The square root of 342317281 is about 18501.8183160467. The cubic root of 342317281 is about 699.5352568227.

The spelling of 342317281 in words is "three hundred forty-two million, three hundred seventeen thousand, two hundred eighty-one".

Divisors: 1 19 43 817 418993 7960867 18016699 342317281