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8043121 = 29535233
BaseRepresentation
bin11110101011101001110001
3120010122002101
4132223221301
54024334441
6444220401
7125236222
oct36535161
916118071
108043121
1145a3a09
12283a701
131887c58
1410d5249
15a8d231
hex7aba71

8043121 has 8 divisors (see below), whose sum is σ = 8479080. Its totient is φ = 7617792.

The previous prime is 8043103. The next prime is 8043151. The reversal of 8043121 is 1213408.

It can be written as a sum of positive squares in 4 ways, for example, as 4260096 + 3783025 = 2064^2 + 1945^2 .

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 8043121 - 25 = 8043089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8043151) 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, 1080 + ... + 4153.

It is an arithmetic number, because the mean of its divisors is an integer number (1059885).

Almost surely, 28043121 is an apocalyptic number.

It is an amenable number.

8043121 is a deficient number, since it is larger than the sum of its proper divisors (435959).

8043121 is a wasteful number, since it uses less digits than its factorization.

8043121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5315.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 8043121 is about 2836.0396682698. The cubic root of 8043121 is about 200.3586979609.

Adding to 8043121 its reverse (1213408), we get a palindrome (9256529).

The spelling of 8043121 in words is "eight million, forty-three thousand, one hundred twenty-one".

Divisors: 1 29 53 1537 5233 151757 277349 8043121