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16392069 = 321939437
BaseRepresentation
bin111110100001…
…111110000101
31010211210200200
4332201332011
513144021234
61343201113
7256221201
oct76417605
933753620
1016392069
119286671
1255a6199
13351c165
142269b01
15168bd99
hexfa1f85

16392069 has 12 divisors (see below), whose sum is σ = 23802636. Its totient is φ = 10870272.

The previous prime is 16392043. The next prime is 16392091. The reversal of 16392069 is 96029361.

It can be written as a sum of positive squares in 2 ways, for example, as 6563844 + 9828225 = 2562^2 + 3135^2 .

It is not a de Polignac number, because 16392069 - 27 = 16391941 is a prime.

It is a super-2 number, since 2×163920692 = 537399852201522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16392869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2982 + ... + 6455.

It is an arithmetic number, because the mean of its divisors is an integer number (1983553).

Almost surely, 216392069 is an apocalyptic number.

It is an amenable number.

16392069 is a deficient number, since it is larger than the sum of its proper divisors (7410567).

16392069 is a wasteful number, since it uses less digits than its factorization.

16392069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9636 (or 9633 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 16392069 is about 4048.7120174199. The cubic root of 16392069 is about 254.0258565862.

The spelling of 16392069 in words is "sixteen million, three hundred ninety-two thousand, sixty-nine".

Divisors: 1 3 9 193 579 1737 9437 28311 84933 1821341 5464023 16392069