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12998973 = 313225639
BaseRepresentation
bin110001100101…
…100100111101
3220110102020110
4301211210331
511311431343
61142340233
7215326611
oct61454475
926412213
1012998973
117379359
12442a679
132901900
141a25341
15121b833
hexc6593d

12998973 has 12 divisors (see below), whose sum is σ = 18768480. Its totient is φ = 7999056.

The previous prime is 12998969. The next prime is 12998977. The reversal of 12998973 is 37989921.

It is an interprime number because it is at equal distance from previous prime (12998969) and next prime (12998977).

It is not a de Polignac number, because 12998973 - 22 = 12998969 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12998977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12313 + ... + 13326.

It is an arithmetic number, because the mean of its divisors is an integer number (1564040).

Almost surely, 212998973 is an apocalyptic number.

12998973 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12998973 is a deficient number, since it is larger than the sum of its proper divisors (5769507).

12998973 is a wasteful number, since it uses less digits than its factorization.

12998973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25668 (or 25655 counting only the distinct ones).

The product of its digits is 244944, while the sum is 48.

The square root of 12998973 is about 3605.4088533757. The cubic root of 12998973 is about 235.1272767610.

The spelling of 12998973 in words is "twelve million, nine hundred ninety-eight thousand, nine hundred seventy-three".

Divisors: 1 3 13 39 169 507 25639 76917 333307 999921 4332991 12998973