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12698131 = 47733701
BaseRepresentation
bin110000011100…
…001000010011
3212220010120011
4300130020103
511222320011
61132055351
7212634535
oct60341023
925803504
1012698131
117193326
124304557
1328279b4
141987855
1511ac621
hexc1c213

12698131 has 8 divisors (see below), whose sum is σ = 13149504. Its totient is φ = 12254400.

The previous prime is 12698129. The next prime is 12698159. The reversal of 12698131 is 13189621.

12698131 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12698131 - 21 = 12698129 is a prime.

It is a super-2 number, since 2×126981312 = 322485061786322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12698093 and 12698102.

It is not an unprimeable number, because it can be changed into a prime (12698171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1581 + ... + 5281.

It is an arithmetic number, because the mean of its divisors is an integer number (1643688).

Almost surely, 212698131 is an apocalyptic number.

12698131 is a deficient number, since it is larger than the sum of its proper divisors (451373).

12698131 is an equidigital number, since it uses as much as digits as its factorization.

12698131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3821.

The product of its digits is 2592, while the sum is 31.

The square root of 12698131 is about 3563.4436995693. The cubic root of 12698131 is about 233.2992097491.

The spelling of 12698131 in words is "twelve million, six hundred ninety-eight thousand, one hundred thirty-one".

Divisors: 1 47 73 3431 3701 173947 270173 12698131