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16492901 = 18191121
BaseRepresentation
bin111110111010…
…100101100101
31011000221000012
4332322211211
513210233101
61345300005
7260121155
oct76724545
934027005
1016492901
1193453a7
125634605
133556019
142294765
1516abbbb
hexfba965

16492901 has 4 divisors (see below), whose sum is σ = 16584204. Its totient is φ = 16401600.

The previous prime is 16492897. The next prime is 16492913. The reversal of 16492901 is 10929461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10929461 = 13183431.

It can be written as a sum of positive squares in 2 ways, for example, as 5635876 + 10857025 = 2374^2 + 3295^2 .

It is a cyclic number.

It is not a de Polignac number, because 16492901 - 22 = 16492897 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16492981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45380 + ... + 45741.

It is an arithmetic number, because the mean of its divisors is an integer number (4146051).

Almost surely, 216492901 is an apocalyptic number.

It is an amenable number.

16492901 is a deficient number, since it is larger than the sum of its proper divisors (91303).

16492901 is an equidigital number, since it uses as much as digits as its factorization.

16492901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91302.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 16492901 is about 4061.1452818140. The cubic root of 16492901 is about 254.5456525625.

The spelling of 16492901 in words is "sixteen million, four hundred ninety-two thousand, nine hundred one".

Divisors: 1 181 91121 16492901