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12431098 = 254111489
BaseRepresentation
bin101111011010…
…111011111010
3212101120021001
4233122323322
511140243343
61122235214
7210443161
oct57327372
925346231
1012431098
117020739
1241b5b0a
1327632a4
1419183d8
15115844d
hexbdaefa

12431098 has 8 divisors (see below), whose sum is σ = 18682740. Its totient is φ = 6203520.

The previous prime is 12431071. The next prime is 12431099. The reversal of 12431098 is 89013421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11950849 + 480249 = 3457^2 + 693^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12431099) 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 3 ways as a sum of consecutive naturals, for example, 4663 + ... + 6826.

Almost surely, 212431098 is an apocalyptic number.

12431098 is a deficient number, since it is larger than the sum of its proper divisors (6251642).

12431098 is a wasteful number, since it uses less digits than its factorization.

12431098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12032.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 12431098 is about 3525.7762265918. The cubic root of 12431098 is about 231.6522361029.

The spelling of 12431098 in words is "twelve million, four hundred thirty-one thousand, ninety-eight".

Divisors: 1 2 541 1082 11489 22978 6215549 12431098