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12345230 = 2517101719
BaseRepresentation
bin101111000101…
…111110001110
3212020012110202
4233011332032
511130021410
61120333502
7206634632
oct57057616
925205422
1012345230
116a72177
124174292
132733191
1418d4dc2
15113cca5
hexbc5f8e

12345230 has 32 divisors (see below), whose sum is σ = 23794560. Its totient is φ = 4595200.

The previous prime is 12345211. The next prime is 12345233. The reversal of 12345230 is 3254321.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12345233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16811 + ... + 17529.

It is an arithmetic number, because the mean of its divisors is an integer number (743580).

Almost surely, 212345230 is an apocalyptic number.

12345230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12345230 is a deficient number, since it is larger than the sum of its proper divisors (11449330).

12345230 is a wasteful number, since it uses less digits than its factorization.

12345230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 12345230 is about 3513.5779484736. The cubic root of 12345230 is about 231.1176227996.

Adding to 12345230 its reverse (3254321), we get a palindrome (15599551).

Subtracting from 12345230 its reverse (3254321), we obtain a palindrome (9090909).

The spelling of 12345230 in words is "twelve million, three hundred forty-five thousand, two hundred thirty".

Divisors: 1 2 5 10 17 34 85 101 170 202 505 719 1010 1438 1717 3434 3595 7190 8585 12223 17170 24446 61115 72619 122230 145238 363095 726190 1234523 2469046 6172615 12345230