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16814629 = 131293433
BaseRepresentation
bin100000000100…
…1001000100101
31011122021100001
41000021020211
513301032004
61400221301
7262631146
oct100111045
934567301
1016814629
119545097
12576a831
1336395b0
142339acd
1517221a4
hex1009225

16814629 has 4 divisors (see below), whose sum is σ = 18108076. Its totient is φ = 15521184.

The previous prime is 16814627. The next prime is 16814641. The reversal of 16814629 is 92641861.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2924100 + 13890529 = 1710^2 + 3727^2 .

It is a cyclic number.

It is not a de Polignac number, because 16814629 - 21 = 16814627 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16814627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646704 + ... + 646729.

It is an arithmetic number, because the mean of its divisors is an integer number (4527019).

Almost surely, 216814629 is an apocalyptic number.

It is an amenable number.

16814629 is a deficient number, since it is larger than the sum of its proper divisors (1293447).

16814629 is a wasteful number, since it uses less digits than its factorization.

16814629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293446.

The product of its digits is 20736, while the sum is 37.

The square root of 16814629 is about 4100.5644733378. The cubic root of 16814629 is about 256.1901510834.

The spelling of 16814629 in words is "sixteen million, eight hundred fourteen thousand, six hundred twenty-nine".

Divisors: 1 13 1293433 16814629