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12685033 is a prime number
BaseRepresentation
bin110000011000…
…111011101001
3212212110121001
4300120323221
511221410113
61131515001
7212551414
oct60307351
925773531
1012685033
1171844a9
1242b8a61
132821a4a
141982b7b
1511a87dd
hexc18ee9

12685033 has 2 divisors, whose sum is σ = 12685034. Its totient is φ = 12685032.

The previous prime is 12685019. The next prime is 12685037. The reversal of 12685033 is 33058621.

12685033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8139609 + 4545424 = 2853^2 + 2132^2 .

It is an emirp because it is prime and its reverse (33058621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12685033 is a prime.

It is a super-2 number, since 2×126850332 = 321820124422178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12684992 and 12685010.

It is not a weakly prime, because it can be changed into another prime (12685037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6342516 + 6342517.

It is an arithmetic number, because the mean of its divisors is an integer number (6342517).

Almost surely, 212685033 is an apocalyptic number.

It is an amenable number.

12685033 is a deficient number, since it is larger than the sum of its proper divisors (1).

12685033 is an equidigital number, since it uses as much as digits as its factorization.

12685033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 12685033 is about 3561.6053964469. The cubic root of 12685033 is about 233.2189668558.

The spelling of 12685033 in words is "twelve million, six hundred eighty-five thousand, thirty-three".