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16701697 = 52132057
BaseRepresentation
bin111111101101…
…100100000001
31011102112102101
4333231210001
513233423242
61353550401
7261650665
oct77554401
934375371
1016701697
119478261
125715401
1335ca07c
14230a8a5
1516ed9b7
hexfed901

16701697 has 4 divisors (see below), whose sum is σ = 16734276. Its totient is φ = 16669120.

The previous prime is 16701677. The next prime is 16701733. The reversal of 16701697 is 79610761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79610761 = 95383537.

It can be written as a sum of positive squares in 2 ways, for example, as 12503296 + 4198401 = 3536^2 + 2049^2 .

It is a cyclic number.

It is not a de Polignac number, because 16701697 - 211 = 16699649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16701647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15508 + ... + 16549.

It is an arithmetic number, because the mean of its divisors is an integer number (4183569).

Almost surely, 216701697 is an apocalyptic number.

It is an amenable number.

16701697 is a deficient number, since it is larger than the sum of its proper divisors (32579).

16701697 is an equidigital number, since it uses as much as digits as its factorization.

16701697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32578.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 16701697 is about 4086.7709747428. The cubic root of 16701697 is about 255.6153127288.

The spelling of 16701697 in words is "sixteen million, seven hundred one thousand, six hundred ninety-seven".

Divisors: 1 521 32057 16701697