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8872141 = 19146451
BaseRepresentation
bin100001110110…
…000011001101
3121200202021211
4201312003031
54232402031
6514054421
7135261205
oct41660315
917622254
108872141
11500a853
122b7a411
131ab83b5
14126d405
15ba3bb1
hex8760cd

8872141 has 4 divisors (see below), whose sum is σ = 8918784. Its totient is φ = 8825500.

The previous prime is 8872139. The next prime is 8872153. The reversal of 8872141 is 1412788.

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 8872141 - 21 = 8872139 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8872121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23035 + ... + 23416.

It is an arithmetic number, because the mean of its divisors is an integer number (2229696).

Almost surely, 28872141 is an apocalyptic number.

It is an amenable number.

8872141 is a deficient number, since it is larger than the sum of its proper divisors (46643).

8872141 is a wasteful number, since it uses less digits than its factorization.

8872141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46642.

The product of its digits is 3584, while the sum is 31.

The square root of 8872141 is about 2978.6139394020. The cubic root of 8872141 is about 207.0186529746.

The spelling of 8872141 in words is "eight million, eight hundred seventy-two thousand, one hundred forty-one".

Divisors: 1 191 46451 8872141