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12813098 = 26406549
BaseRepresentation
bin110000111000…
…001100101010
3220002222021012
4300320030222
511240004343
61134343522
7213623654
oct60701452
926088235
1012813098
117261741
12435aba2
13286811c
1419b76d4
1511d1718
hexc3832a

12813098 has 4 divisors (see below), whose sum is σ = 19219650. Its totient is φ = 6406548.

The previous prime is 12813091. The next prime is 12813109. The reversal of 12813098 is 89031821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11404129 + 1408969 = 3377^2 + 1187^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12813091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3203273 + ... + 3203276.

Almost surely, 212813098 is an apocalyptic number.

12813098 is a deficient number, since it is larger than the sum of its proper divisors (6406552).

12813098 is an equidigital number, since it uses as much as digits as its factorization.

12813098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6406551.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 12813098 is about 3579.5387971078. The cubic root of 12813098 is about 234.0011809909.

The spelling of 12813098 in words is "twelve million, eight hundred thirteen thousand, ninety-eight".

Divisors: 1 2 6406549 12813098