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16913089 = 22774507
BaseRepresentation
bin100000010000…
…1001011000001
31011211021101201
41000201023001
513312204324
61402301201
7263521204
oct100411301
934737351
1016913089
119602066
1257b7801
13367235b
14236393b
151741444
hex10212c1

16913089 has 4 divisors (see below), whose sum is σ = 16987824. Its totient is φ = 16838356.

The previous prime is 16913087. The next prime is 16913093. The reversal of 16913089 is 98031961.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16913089 - 21 = 16913087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16913081) 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, 37027 + ... + 37480.

It is an arithmetic number, because the mean of its divisors is an integer number (4246956).

Almost surely, 216913089 is an apocalyptic number.

It is an amenable number.

16913089 is a deficient number, since it is larger than the sum of its proper divisors (74735).

16913089 is an equidigital number, since it uses as much as digits as its factorization.

16913089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74734.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 16913089 is about 4112.5526136452. The cubic root of 16913089 is about 256.6892285408.

The spelling of 16913089 in words is "sixteen million, nine hundred thirteen thousand, eighty-nine".

Divisors: 1 227 74507 16913089