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12028901 is a prime number
BaseRepresentation
bin101101111000…
…101111100101
3211122010112212
4231320233211
511034411101
61105453205
7204146453
oct55705745
924563485
1012028901
116876545
124041205
1326521c1
1418519d3
1510c91bb
hexb78be5

12028901 has 2 divisors, whose sum is σ = 12028902. Its totient is φ = 12028900.

The previous prime is 12028897. The next prime is 12028937. The reversal of 12028901 is 10982021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7924225 + 4104676 = 2815^2 + 2026^2 .

It is a cyclic number.

It is not a de Polignac number, because 12028901 - 22 = 12028897 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12028981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6014450 + 6014451.

It is an arithmetic number, because the mean of its divisors is an integer number (6014451).

Almost surely, 212028901 is an apocalyptic number.

It is an amenable number.

12028901 is a deficient number, since it is larger than the sum of its proper divisors (1).

12028901 is an equidigital number, since it uses as much as digits as its factorization.

12028901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 12028901 is about 3468.2706065127. The cubic root of 12028901 is about 229.1264977455.

The spelling of 12028901 in words is "twelve million, twenty-eight thousand, nine hundred one".