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231270342 = 2338545057
BaseRepresentation
bin11011100100011…
…10011111000110
3121010011202021020
431302032133012
5433201122332
634540532010
75505523362
oct1562163706
9533152236
10231270342
11109600916
1265551006
1338bb5574
1422a022a2
151548482c
hexdc8e7c6

231270342 has 8 divisors (see below), whose sum is σ = 462540696. Its totient is φ = 77090112.

The previous prime is 231270293. The next prime is 231270343. The reversal of 231270342 is 243072132.

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

231270342 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231270343) 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, 19272523 + ... + 19272534.

It is an arithmetic number, because the mean of its divisors is an integer number (57817587).

Almost surely, 2231270342 is an apocalyptic number.

231270342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231270342 is a wasteful number, since it uses less digits than its factorization.

231270342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38545062.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 231270342 is about 15207.5751518774. The cubic root of 231270342 is about 613.8185103054.

The spelling of 231270342 in words is "two hundred thirty-one million, two hundred seventy thousand, three hundred forty-two".

Divisors: 1 2 3 6 38545057 77090114 115635171 231270342