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112107321 = 354310729
BaseRepresentation
bin1101010111010…
…01111100111001
321210221122100000
412223221330321
5212144413241
615042503213
72530616334
oct653517471
9253848300
10112107321
1158310987
1231664b09
131a2c25c1
1410c6361b
159c96eb6
hex6ae9f39

112107321 has 24 divisors (see below), whose sum is σ = 171851680. Its totient is φ = 72993312.

The previous prime is 112107319. The next prime is 112107329. The reversal of 112107321 is 123701211.

It is a happy number.

It is not a de Polignac number, because 112107321 - 21 = 112107319 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 112107294 and 112107303.

It is not an unprimeable number, because it can be changed into a prime (112107329) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 5085 + ... + 15813.

Almost surely, 2112107321 is an apocalyptic number.

It is an amenable number.

112107321 is a deficient number, since it is larger than the sum of its proper divisors (59744359).

112107321 is an equidigital number, since it uses as much as digits as its factorization.

112107321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10787 (or 10775 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 112107321 is about 10588.0744708375. The cubic root of 112107321 is about 482.1823673019.

Adding to 112107321 its reverse (123701211), we get a palindrome (235808532).

The spelling of 112107321 in words is "one hundred twelve million, one hundred seven thousand, three hundred twenty-one".

Divisors: 1 3 9 27 43 81 129 243 387 1161 3483 10449 10729 32187 96561 289683 461347 869049 1384041 2607147 4152123 12456369 37369107 112107321