Base | Representation |
---|---|
bin | 10101100101001… |
… | …11011101101110 |
3 | 110121122211120110 |
4 | 22302213131232 |
5 | 332321303011 |
6 | 25544200450 |
7 | 4325552226 |
oct | 1262473556 |
9 | 417584513 |
10 | 181041006 |
11 | 93213873 |
12 | 50769126 |
13 | 2b679973 |
14 | 1a089086 |
15 | 10d61ba6 |
hex | aca776e |
181041006 has 32 divisors (see below), whose sum is σ = 381945600. Its totient is φ = 57049920.
The previous prime is 181040999. The next prime is 181041013. The reversal of 181041006 is 600140181.
It is an interprime number because it is at equal distance from previous prime (181040999) and next prime (181041013).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63471 + ... + 66261.
It is an arithmetic number, because the mean of its divisors is an integer number (11935800).
Almost surely, 2181041006 is an apocalyptic number.
181041006 is an abundant number, since it is smaller than the sum of its proper divisors (200904594).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
181041006 is a wasteful number, since it uses less digits than its factorization.
181041006 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3384.
The product of its (nonzero) digits is 192, while the sum is 21.
The square root of 181041006 is about 13455.1479367564. The cubic root of 181041006 is about 565.7079969821.
Adding to 181041006 its reverse (600140181), we get a palindrome (781181187).
It can be divided in two parts, 18104 and 1006, that added together give a triangular number (19110 = T195).
The spelling of 181041006 in words is "one hundred eighty-one million, forty-one thousand, six".
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