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12290801 is a prime number
BaseRepresentation
bin101110111000…
…101011110001
3212010102210212
4232320223301
511121301201
61115233505
7206320145
oct56705361
925112725
1012290801
116a35296
124148895
132714483
1418bd225
15112babb
hexbb8af1

12290801 has 2 divisors, whose sum is σ = 12290802. Its totient is φ = 12290800.

The previous prime is 12290749. The next prime is 12290833. The reversal of 12290801 is 10809221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12285025 + 5776 = 3505^2 + 76^2 .

It is an emirp because it is prime and its reverse (10809221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12290801 - 26 = 12290737 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12290851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6145400 + 6145401.

It is an arithmetic number, because the mean of its divisors is an integer number (6145401).

Almost surely, 212290801 is an apocalyptic number.

It is an amenable number.

12290801 is a deficient number, since it is larger than the sum of its proper divisors (1).

12290801 is an equidigital number, since it uses as much as digits as its factorization.

12290801 is an evil number, because the sum of its binary digits is even.

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

The square root of 12290801 is about 3505.8238689358. The cubic root of 12290801 is about 230.7774635154. Note that the first 3 decimals are identical.

The spelling of 12290801 in words is "twelve million, two hundred ninety thousand, eight hundred one".