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231323042 = 2883130987
BaseRepresentation
bin11011100100110…
…11010110100010
3121010021102120002
431302123112202
5433204314132
634542020002
75506133126
oct1562332642
9533242502
10231323042
11109637475
1265577602
1338c03552
1422a17586
1515495262
hexdc9b5a2

231323042 has 8 divisors (see below), whose sum is σ = 347380176. Its totient is φ = 115529652.

The previous prime is 231323021. The next prime is 231323069. The reversal of 231323042 is 240323132.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63728 + ... + 67259.

It is an arithmetic number, because the mean of its divisors is an integer number (43422522).

Almost surely, 2231323042 is an apocalyptic number.

231323042 is a deficient number, since it is larger than the sum of its proper divisors (116057134).

231323042 is a wasteful number, since it uses less digits than its factorization.

231323042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131872.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 231323042 is about 15209.3077423004. The cubic root of 231323042 is about 613.8651307503.

Adding to 231323042 its reverse (240323132), we get a palindrome (471646174).

The spelling of 231323042 in words is "two hundred thirty-one million, three hundred twenty-three thousand, forty-two".

Divisors: 1 2 883 1766 130987 261974 115661521 231323042