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16764901 is a prime number
BaseRepresentation
bin111111111100…
…111111100101
31011112202010021
4333330333211
513242434101
61355155141
7262333156
oct77747745
934482107
1016764901
11951079a
125745ab1
13361ca7a
14232592d
1517125a1
hexffcfe5

16764901 has 2 divisors, whose sum is σ = 16764902. Its totient is φ = 16764900.

The previous prime is 16764899. The next prime is 16764949. The reversal of 16764901 is 10946761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16008001 + 756900 = 4001^2 + 870^2 .

It is a cyclic number.

It is not a de Polignac number, because 16764901 - 21 = 16764899 is a prime.

Together with 16764899, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16764991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8382450 + 8382451.

It is an arithmetic number, because the mean of its divisors is an integer number (8382451).

Almost surely, 216764901 is an apocalyptic number.

It is an amenable number.

16764901 is a deficient number, since it is larger than the sum of its proper divisors (1).

16764901 is an equidigital number, since it uses as much as digits as its factorization.

16764901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 16764901 is about 4094.4964281337. The cubic root of 16764901 is about 255.9373473387.

The spelling of 16764901 in words is "sixteen million, seven hundred sixty-four thousand, nine hundred one".