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16006943 = 311373769
BaseRepresentation
bin111101000011…
…111100011111
31010010020101202
4331003330133
513044210233
61331030115
7253025321
oct75037437
933106352
1016006943
119043287
12543b33b
133415a84
1421a9611
151612be8
hexf43f1f

16006943 has 8 divisors (see below), whose sum is σ = 16648320. Its totient is φ = 15373440.

The previous prime is 16006937. The next prime is 16006951. The reversal of 16006943 is 34960061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16006943 - 210 = 16005919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16006973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2363 + ... + 6131.

It is an arithmetic number, because the mean of its divisors is an integer number (2081040).

Almost surely, 216006943 is an apocalyptic number.

16006943 is a deficient number, since it is larger than the sum of its proper divisors (641377).

16006943 is a wasteful number, since it uses less digits than its factorization.

16006943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3937.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 16006943 is about 4000.8677808695. The cubic root of 16006943 is about 252.0206531742.

The spelling of 16006943 in words is "sixteen million, six thousand, nine hundred forty-three".

Divisors: 1 31 137 3769 4247 116839 516353 16006943