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12123310 = 251212331
BaseRepresentation
bin101110001111…
…110010101110
3211210221001111
4232033302232
511100421220
61111502234
7205021633
oct56176256
924727044
1012123310
116930471
12408797a
132686174
14187818a
1510e715a
hexb8fcae

12123310 has 8 divisors (see below), whose sum is σ = 21821976. Its totient is φ = 4849320.

The previous prime is 12123299. The next prime is 12123317. The reversal of 12123310 is 1332121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×121233102 = 293949290712200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606156 + ... + 606175.

It is an arithmetic number, because the mean of its divisors is an integer number (2727747).

Almost surely, 212123310 is an apocalyptic number.

12123310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12123310 is a deficient number, since it is larger than the sum of its proper divisors (9698666).

12123310 is a wasteful number, since it uses less digits than its factorization.

12123310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212338.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 12123310 is about 3481.8543909819. The cubic root of 12123310 is about 229.7243705137.

Adding to 12123310 its reverse (1332121), we get a palindrome (13455431).

The spelling of 12123310 in words is "twelve million, one hundred twenty-three thousand, three hundred ten".

Divisors: 1 2 5 10 1212331 2424662 6061655 12123310