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123230000 = 245412323
BaseRepresentation
bin1110101100001…
…01011100110000
322120212201210002
413112011130300
5223021330000
620121125132
73024303065
oct726053460
9276781702
10123230000
1163618583
12353297a8
131c6b817a
141251ac6c
15ac428d5
hex7585730

123230000 has 50 divisors (see below), whose sum is σ = 298376364. Its totient is φ = 49288000.

The previous prime is 123229979. The next prime is 123230011. The reversal of 123230000 is 32321.

It is a tau number, because it is divible by the number of its divisors (50).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3839 + ... + 16161.

Almost surely, 2123230000 is an apocalyptic number.

123230000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123230000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149188182).

123230000 is an abundant number, since it is smaller than the sum of its proper divisors (175146364).

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

123230000 is an equidigital number, since it uses as much as digits as its factorization.

123230000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12351 (or 12330 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 123230000 is about 11100.9008643443. The cubic root of 123230000 is about 497.6287723357.

Adding to 123230000 its reverse (32321), we get a palindrome (123262321).

The spelling of 123230000 in words is "one hundred twenty-three million, two hundred thirty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 625 1000 1250 2000 2500 5000 10000 12323 24646 49292 61615 98584 123230 197168 246460 308075 492920 616150 985840 1232300 1540375 2464600 3080750 4929200 6161500 7701875 12323000 15403750 24646000 30807500 61615000 123230000