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342108381 = 31091046203
BaseRepresentation
bin10100011001000…
…010100011011101
3212211201220110210
4110121002203131
51200034432011
653540323033
711322605346
oct2431024335
9784656423
10342108381
111661250aa
12966a3479
1355b521c4
14336150cd
152007a6a6
hex146428dd

342108381 has 8 divisors (see below), whose sum is σ = 460329760. Its totient is φ = 225979632.

The previous prime is 342108379. The next prime is 342108407. The reversal of 342108381 is 183801243.

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

It is not a de Polignac number, because 342108381 - 21 = 342108379 is a prime.

It is a super-2 number, since 2×3421083812 = 234076288700882322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342108581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522775 + ... + 523428.

It is an arithmetic number, because the mean of its divisors is an integer number (57541220).

Almost surely, 2342108381 is an apocalyptic number.

It is an amenable number.

342108381 is a deficient number, since it is larger than the sum of its proper divisors (118221379).

342108381 is a wasteful number, since it uses less digits than its factorization.

342108381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046315.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 342108381 is about 18496.1720634298. The cubic root of 342108381 is about 699.3929301379.

The spelling of 342108381 in words is "three hundred forty-two million, one hundred eight thousand, three hundred eighty-one".

Divisors: 1 3 109 327 1046203 3138609 114036127 342108381