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123230043 = 3215190677
BaseRepresentation
bin1110101100001…
…01011101011011
322120212201211200
413112011131123
5223021330133
620121125243
73024303156
oct726053533
9276781750
10123230043
1163618612
1235329823
131c6b81b1
141251ac9d
15ac42913
hex758575b

123230043 has 12 divisors (see below), whose sum is σ = 179179728. Its totient is φ = 81608400.

The previous prime is 123230039. The next prime is 123230047. The reversal of 123230043 is 340032321.

It is an interprime number because it is at equal distance from previous prime (123230039) and next prime (123230047).

It is not a de Polignac number, because 123230043 - 22 = 123230039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123229998 and 123230025.

It is not an unprimeable number, because it can be changed into a prime (123230047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43980 + ... + 46697.

It is an arithmetic number, because the mean of its divisors is an integer number (14931644).

Almost surely, 2123230043 is an apocalyptic number.

123230043 is a deficient number, since it is larger than the sum of its proper divisors (55949685).

123230043 is a wasteful number, since it uses less digits than its factorization.

123230043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90834 (or 90831 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 123230043 is about 11100.9028011239. The cubic root of 123230043 is about 497.6288302168.

Adding to 123230043 its reverse (340032321), we get a palindrome (463262364).

The spelling of 123230043 in words is "one hundred twenty-three million, two hundred thirty thousand, forty-three".

Divisors: 1 3 9 151 453 1359 90677 272031 816093 13692227 41076681 123230043