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243134342 = 21111051561
BaseRepresentation
bin11100111110111…
…10111110000110
3121221111111121122
432133132332012
5444220244332
640043113542
76011415323
oct1637367606
9557444548
10243134342
11115274480
12695128b2
133b4aa699
142440db4a
1516529c12
hexe7def86

243134342 has 8 divisors (see below), whose sum is σ = 397856232. Its totient is φ = 110515600.

The previous prime is 243134327. The next prime is 243134369. The reversal of 243134342 is 243431342.

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

It is a super-2 number, since 2×2431343422 = 118228616519545928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5525759 + ... + 5525802.

It is an arithmetic number, because the mean of its divisors is an integer number (49732029).

Almost surely, 2243134342 is an apocalyptic number.

243134342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243134342 is a deficient number, since it is larger than the sum of its proper divisors (154721890).

243134342 is a wasteful number, since it uses less digits than its factorization.

243134342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11051574.

The product of its digits is 6912, while the sum is 26.

The square root of 243134342 is about 15592.7656943853. The cubic root of 243134342 is about 624.1401226935.

Adding to 243134342 its reverse (243431342), we get a palindrome (486565684).

The spelling of 243134342 in words is "two hundred forty-three million, one hundred thirty-four thousand, three hundred forty-two".

Divisors: 1 2 11 22 11051561 22103122 121567171 243134342