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16969047 = 343131543
BaseRepresentation
bin100000010111…
…0110101010111
31011221010011020
41000232311113
513321002142
61403412223
7264143304
oct100566527
934833136
1016969047
119640107
125824073
133691974
14237a0ab
151752cec
hex102ed57

16969047 has 8 divisors (see below), whose sum is σ = 23151744. Its totient is φ = 11049528.

The previous prime is 16969027. The next prime is 16969079. The reversal of 16969047 is 74096961.

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

It is not a de Polignac number, because 16969047 - 26 = 16968983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16969027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65643 + ... + 65900.

It is an arithmetic number, because the mean of its divisors is an integer number (2893968).

Almost surely, 216969047 is an apocalyptic number.

16969047 is a deficient number, since it is larger than the sum of its proper divisors (6182697).

16969047 is a wasteful number, since it uses less digits than its factorization.

16969047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131589.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 16969047 is about 4119.3503128527. The cubic root of 16969047 is about 256.9720076301.

The spelling of 16969047 in words is "sixteen million, nine hundred sixty-nine thousand, forty-seven".

Divisors: 1 3 43 129 131543 394629 5656349 16969047