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10801649 is a prime number
BaseRepresentation
bin101001001101…
…000111110001
3202022210002002
4221031013301
510231123044
61023303345
7160545455
oct51150761
922283062
1010801649
116108491
12374ab55
132312711
141612665
15e3574e
hexa4d1f1

10801649 has 2 divisors, whose sum is σ = 10801650. Its totient is φ = 10801648.

The previous prime is 10801639. The next prime is 10801657. The reversal of 10801649 is 94610801.

10801649 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., 10608049 + 193600 = 3257^2 + 440^2 .

It is a cyclic number.

It is not a de Polignac number, because 10801649 - 216 = 10736113 is a prime.

It is a super-2 number, since 2×108016492 = 233351242238402, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (10801639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5400824 + 5400825.

It is an arithmetic number, because the mean of its divisors is an integer number (5400825).

Almost surely, 210801649 is an apocalyptic number.

It is an amenable number.

10801649 is a deficient number, since it is larger than the sum of its proper divisors (1).

10801649 is an equidigital number, since it uses as much as digits as its factorization.

10801649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 10801649 is about 3286.5862228154. The cubic root of 10801649 is about 221.0531392865.

The spelling of 10801649 in words is "ten million, eight hundred one thousand, six hundred forty-nine".