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11672171 = 77921107
BaseRepresentation
bin101100100001…
…101001101011
3210222000012122
4230201221223
510442002141
61054101455
7201132440
oct54415153
923860178
1011672171
116652525
123aaa88b
132558a14
14179b9c7
15105864b
hexb21a6b

11672171 has 8 divisors (see below), whose sum is σ = 13509120. Its totient is φ = 9877608.

The previous prime is 11672159. The next prime is 11672173. The reversal of 11672171 is 17127611.

11672171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11672171 - 210 = 11671147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11672171.

It is not an unprimeable number, because it can be changed into a prime (11672173) 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, 10001 + ... + 11106.

It is an arithmetic number, because the mean of its divisors is an integer number (1688640).

Almost surely, 211672171 is an apocalyptic number.

11672171 is a deficient number, since it is larger than the sum of its proper divisors (1836949).

11672171 is an equidigital number, since it uses as much as digits as its factorization.

11672171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21193.

The product of its digits is 588, while the sum is 26.

The square root of 11672171 is about 3416.4559121991. The cubic root of 11672171 is about 226.8387334867.

Adding to 11672171 its reverse (17127611), we get a palindrome (28799782).

The spelling of 11672171 in words is "eleven million, six hundred seventy-two thousand, one hundred seventy-one".

Divisors: 1 7 79 553 21107 147749 1667453 11672171