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231424134 = 23187320593
BaseRepresentation
bin11011100101101…
…00000010000110
3121010110120020020
431302310002012
5433221033014
634544120010
75510033634
oct1562640206
9533416206
10231424134
111096a6417
1265606006
1338c3a576
1422a42354
15154b51a9
hexdcb4086

231424134 has 16 divisors (see below), whose sum is σ = 463117872. Its totient is φ = 77096448.

The previous prime is 231424117. The next prime is 231424139. The reversal of 231424134 is 431424132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231424139) 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, 942 + ... + 21534.

It is an arithmetic number, because the mean of its divisors is an integer number (28944867).

Almost surely, 2231424134 is an apocalyptic number.

231424134 is an abundant number, since it is smaller than the sum of its proper divisors (231693738).

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

231424134 is a wasteful number, since it uses less digits than its factorization.

231424134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22471.

The product of its digits is 2304, while the sum is 24.

The square root of 231424134 is about 15212.6307389616. The cubic root of 231424134 is about 613.9545408028.

Adding to 231424134 its reverse (431424132), we get a palindrome (662848266).

It can be divided in two parts, 23142 and 4134, that multiplied together give a triangular number (95669028 = T13832).

The spelling of 231424134 in words is "two hundred thirty-one million, four hundred twenty-four thousand, one hundred thirty-four".

Divisors: 1 2 3 6 1873 3746 5619 11238 20593 41186 61779 123558 38570689 77141378 115712067 231424134