Base | Representation |
---|---|
bin | 100010001110… |
… | …100011000001 |
3 | 121212211221010 |
4 | 202032203001 |
5 | 4244104411 |
6 | 520151133 |
7 | 136156560 |
oct | 42164301 |
9 | 17784833 |
10 | 8972481 |
11 | 5079181 |
12 | 30084a9 |
13 | 1b21c7b |
14 | 1297bd7 |
15 | bc37a6 |
hex | 88e8c1 |
8972481 has 32 divisors (see below), whose sum is σ = 14853888. Its totient is φ = 4700160.
The previous prime is 8972473. The next prime is 8972489. The reversal of 8972481 is 1842798.
It is an interprime number because it is at equal distance from previous prime (8972473) and next prime (8972489).
It is not a de Polignac number, because 8972481 - 23 = 8972473 is a prime.
It is a super-2 number, since 2×89724812 = 161010830590722, which contains 22 as substring.
8972481 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8972489) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14331 + ... + 14943.
It is an arithmetic number, because the mean of its divisors is an integer number (464184).
Almost surely, 28972481 is an apocalyptic number.
It is an amenable number.
8972481 is a deficient number, since it is larger than the sum of its proper divisors (5881407).
8972481 is a wasteful number, since it uses less digits than its factorization.
8972481 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 681.
The product of its digits is 32256, while the sum is 39.
The square root of 8972481 is about 2995.4099886326. The cubic root of 8972481 is about 207.7961590897.
It can be divided in two parts, 8972 and 481, that added together give a triangular number (9453 = T137).
The spelling of 8972481 in words is "eight million, nine hundred seventy-two thousand, four hundred eighty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.082 sec. • engine limits •