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12890498 = 219732717
BaseRepresentation
bin110001001011…
…000110000010
3220020220102212
4301023012002
511244443443
61140142122
7214365425
oct61130602
926226385
1012890498
117304905
124397942
13289441a
1419d79bc
1511e9618
hexc4b182

12890498 has 8 divisors (see below), whose sum is σ = 19434492. Its totient is φ = 6412336.

The previous prime is 12890491. The next prime is 12890543. The reversal of 12890498 is 89409821.

It can be written as a sum of positive squares in 2 ways, for example, as 9138529 + 3751969 = 3023^2 + 1937^2 .

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 (12890491) 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, 15965 + ... + 16752.

Almost surely, 212890498 is an apocalyptic number.

12890498 is a deficient number, since it is larger than the sum of its proper divisors (6543994).

12890498 is a wasteful number, since it uses less digits than its factorization.

12890498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32916.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 12890498 is about 3590.3339677529. Note that the first 3 decimals coincide. The cubic root of 12890498 is about 234.4714119022.

The spelling of 12890498 in words is "twelve million, eight hundred ninety thousand, four hundred ninety-eight".

Divisors: 1 2 197 394 32717 65434 6445249 12890498