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16914289 = 72416327
BaseRepresentation
bin100000010000…
…1011101110001
31011211100001011
41000201131301
513312224124
61402310521
7263524540
oct100413561
934740034
1016914289
119602a57
1257b8441
133672a72
142364157
151741994
hex1021771

16914289 has 4 divisors (see below), whose sum is σ = 19330624. Its totient is φ = 14497956.

The previous prime is 16914283. The next prime is 16914299. The reversal of 16914289 is 98241961.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98241961 = 743313217.

It is a cyclic number.

It is not a de Polignac number, because 16914289 - 23 = 16914281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16914281) 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, 1208157 + ... + 1208170.

It is an arithmetic number, because the mean of its divisors is an integer number (4832656).

Almost surely, 216914289 is an apocalyptic number.

It is an amenable number.

16914289 is a deficient number, since it is larger than the sum of its proper divisors (2416335).

16914289 is an equidigital number, since it uses as much as digits as its factorization.

16914289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2416334.

The product of its digits is 31104, while the sum is 40.

The square root of 16914289 is about 4112.6985058475. The cubic root of 16914289 is about 256.6952991802.

The spelling of 16914289 in words is "sixteen million, nine hundred fourteen thousand, two hundred eighty-nine".

Divisors: 1 7 2416327 16914289