Search a number
-
+
123321230 = 25172233253
BaseRepresentation
bin1110101100110…
…11101110001110
322121001100220222
413112123232032
5223032234410
620123111342
73025133054
oct726335616
9277040828
10123321230
116368007a
1235372552
131c71a856
14125421d4
15ac5e955
hex759bb8e

123321230 has 32 divisors (see below), whose sum is σ = 236162304. Its totient is φ = 46204416.

The previous prime is 123321223. The next prime is 123321257. The reversal of 123321230 is 32123321.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 123321199 and 123321208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36284 + ... + 39536.

It is an arithmetic number, because the mean of its divisors is an integer number (7380072).

Almost surely, 2123321230 is an apocalyptic number.

123321230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123321230 is a deficient number, since it is larger than the sum of its proper divisors (112841074).

123321230 is a wasteful number, since it uses less digits than its factorization.

123321230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 123321230 is about 11105.0092300727. The cubic root of 123321230 is about 497.7515440479.

Adding to 123321230 its reverse (32123321), we get a palindrome (155444551).

The spelling of 123321230 in words is "one hundred twenty-three million, three hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 223 446 1115 2230 3253 3791 6506 7582 16265 18955 32530 37910 55301 110602 276505 553010 725419 1450838 3627095 7254190 12332123 24664246 61660615 123321230