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16672285 = 57476351
BaseRepresentation
bin111111100110…
…011000011101
31011101001002001
4333212120131
513232003120
61353202301
7261466150
oct77463035
934331061
1016672285
119458153
125700391
1335b9876
1422ddc97
1516e4e0a
hexfe661d

16672285 has 8 divisors (see below), whose sum is σ = 22864896. Its totient is φ = 11432400.

The previous prime is 16672283. The next prime is 16672321. The reversal of 16672285 is 58227661.

It is a happy number.

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

It is not a de Polignac number, because 16672285 - 21 = 16672283 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 (16672283) 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, 238141 + ... + 238210.

It is an arithmetic number, because the mean of its divisors is an integer number (2858112).

Almost surely, 216672285 is an apocalyptic number.

It is an amenable number.

16672285 is a deficient number, since it is larger than the sum of its proper divisors (6192611).

16672285 is an equidigital number, since it uses as much as digits as its factorization.

16672285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476363.

The product of its digits is 40320, while the sum is 37.

The square root of 16672285 is about 4083.1709491521. The cubic root of 16672285 is about 255.4651767854.

The spelling of 16672285 in words is "sixteen million, six hundred seventy-two thousand, two hundred eighty-five".

Divisors: 1 5 7 35 476351 2381755 3334457 16672285