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16675985 = 531271397
BaseRepresentation
bin111111100111…
…010010010001
31011101020011002
4333213102101
513232112420
61353231345
7261513014
oct77472221
934336132
1016675985
11945aa07
125702555
1335bb461
14230137b
1516e6075
hexfe7491

16675985 has 16 divisors (see below), whose sum is σ = 20785152. Its totient is φ = 12830400.

The previous prime is 16675979. The next prime is 16675999. The reversal of 16675985 is 58957661.

It is not a de Polignac number, because 16675985 - 26 = 16675921 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41807 + ... + 42203.

It is an arithmetic number, because the mean of its divisors is an integer number (1299072).

Almost surely, 216675985 is an apocalyptic number.

It is an amenable number.

16675985 is a deficient number, since it is larger than the sum of its proper divisors (4109167).

16675985 is a wasteful number, since it uses less digits than its factorization.

16675985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704.

The product of its digits is 453600, while the sum is 47.

The square root of 16675985 is about 4083.6240032598. The cubic root of 16675985 is about 255.4840734402.

The spelling of 16675985 in words is "sixteen million, six hundred seventy-five thousand, nine hundred eighty-five".

Divisors: 1 5 31 155 271 397 1355 1985 8401 12307 42005 61535 107587 537935 3335197 16675985