Base | Representation |
---|---|
bin | 1000101111001… |
… | …00000110001111 |
3 | 12002220022112110 |
4 | 10113210012033 |
5 | 122230123111 |
6 | 11134435103 |
7 | 1546630620 |
oct | 427440617 |
9 | 162808473 |
10 | 73286031 |
11 | 38405975 |
12 | 20662a93 |
13 | 1224c420 |
14 | 9a39a47 |
15 | 66795a6 |
hex | 45e418f |
73286031 has 32 divisors (see below), whose sum is σ = 127346688. Its totient is φ = 36380160.
The previous prime is 73285999. The next prime is 73286063. The reversal of 73286031 is 13068237.
It is an interprime number because it is at equal distance from previous prime (73285999) and next prime (73286063).
It is not a de Polignac number, because 73286031 - 25 = 73285999 is a prime.
It is a super-2 number, since 2×732860312 = 10741684679465922, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 73286031.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (73286531) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3255 + ... + 12536.
It is an arithmetic number, because the mean of its divisors is an integer number (3979584).
Almost surely, 273286031 is an apocalyptic number.
73286031 is a deficient number, since it is larger than the sum of its proper divisors (54060657).
73286031 is a wasteful number, since it uses less digits than its factorization.
73286031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15831.
The product of its (nonzero) digits is 6048, while the sum is 30.
The square root of 73286031 is about 8560.7260790192. The cubic root of 73286031 is about 418.4790623995.
The spelling of 73286031 in words is "seventy-three million, two hundred eighty-six thousand, thirty-one".
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