Base | Representation |
---|---|
bin | 100010010000… |
… | …101100011000 |
3 | 121220021222201 |
4 | 202100230120 |
5 | 4244400042 |
6 | 520255544 |
7 | 136224316 |
oct | 42205430 |
9 | 17807881 |
10 | 8981272 |
11 | 5084843 |
12 | 30115b4 |
13 | 1b25c81 |
14 | 129b0b6 |
15 | bc61b7 |
hex | 890b18 |
8981272 has 8 divisors (see below), whose sum is σ = 16839900. Its totient is φ = 4490632.
The previous prime is 8981267. The next prime is 8981279. The reversal of 8981272 is 2721898.
It is a tau number, because it is divible by the number of its divisors (8).
It is an Ulam number.
It is an alternating number because its digits alternate between even and odd.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8981279) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561322 + ... + 561337.
Almost surely, 28981272 is an apocalyptic number.
It is an amenable number.
8981272 is a deficient number, since it is larger than the sum of its proper divisors (7858628).
8981272 is a wasteful number, since it uses less digits than its factorization.
8981272 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1122665 (or 1122661 counting only the distinct ones).
The product of its digits is 16128, while the sum is 37.
The square root of 8981272 is about 2996.8770411880. The cubic root of 8981272 is about 207.8640013347.
The spelling of 8981272 in words is "eight million, nine hundred eighty-one thousand, two hundred seventy-two".
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