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16672141 = 31537811
BaseRepresentation
bin111111100110…
…010110001101
31011101000212201
4333212112031
513232002031
61353201501
7261465553
oct77462615
934330781
1016672141
119458032
125700291
1335b9795
1422ddbd3
1516e4d61
hexfe658d

16672141 has 4 divisors (see below), whose sum is σ = 17209984. Its totient is φ = 16134300.

The previous prime is 16672099. The next prime is 16672147. The reversal of 16672141 is 14127661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16672141 - 217 = 16541069 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 (16672147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268875 + ... + 268936.

It is an arithmetic number, because the mean of its divisors is an integer number (4302496).

Almost surely, 216672141 is an apocalyptic number.

It is an amenable number.

16672141 is a deficient number, since it is larger than the sum of its proper divisors (537843).

16672141 is an equidigital number, since it uses as much as digits as its factorization.

16672141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537842.

The product of its digits is 2016, while the sum is 28.

The square root of 16672141 is about 4083.1533157598. The cubic root of 16672141 is about 255.4644412915.

The spelling of 16672141 in words is "sixteen million, six hundred seventy-two thousand, one hundred forty-one".

Divisors: 1 31 537811 16672141