Base | Representation |
---|---|
bin | 100000000110… |
… | …011101000101 |
3 | 120211112021100 |
4 | 200012131011 |
5 | 4123240140 |
6 | 500210313 |
7 | 131345442 |
oct | 40063505 |
9 | 16745240 |
10 | 8415045 |
11 | 4828391 |
12 | 2999999 |
13 | 1988322 |
14 | 11909c9 |
15 | b13530 |
hex | 806745 |
8415045 has 24 divisors (see below), whose sum is σ = 14945112. Its totient is φ = 4377600.
The previous prime is 8415037. The next prime is 8415049. The reversal of 8415045 is 5405148.
It can be written as a sum of positive squares in 4 ways, for example, as 16641 + 8398404 = 129^2 + 2898^2 .
It is not a de Polignac number, because 8415045 - 23 = 8415037 is a prime.
It is a Curzon number.
8415045 is a lucky number.
It is a plaindrome in base 12.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8415049) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 436 + ... + 4125.
It is an arithmetic number, because the mean of its divisors is an integer number (622713).
Almost surely, 28415045 is an apocalyptic number.
It is an amenable number.
8415045 is a deficient number, since it is larger than the sum of its proper divisors (6530067).
8415045 is a wasteful number, since it uses less digits than its factorization.
8415045 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4613 (or 4610 counting only the distinct ones).
The product of its (nonzero) digits is 3200, while the sum is 27.
The square root of 8415045 is about 2900.8696971770. The cubic root of 8415045 is about 203.4005615436.
It can be divided in two parts, 841 and 5045, that added together give a triangular number (5886 = T108).
The spelling of 8415045 in words is "eight million, four hundred fifteen thousand, forty-five".
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