Base | Representation |
---|---|
bin | 10010111100101101… |
… | …00000110001001111 |
3 | 222020222002120111111 |
4 | 21132112200301033 |
5 | 131313230104122 |
6 | 4401240232451 |
7 | 510044113633 |
oct | 113626406117 |
9 | 28228076444 |
10 | 10172894287 |
11 | 4350374056 |
12 | 1b7aa6b727 |
13 | c61773c9a |
14 | 6c70cadc3 |
15 | 3e8160d77 |
hex | 25e5a0c4f |
10172894287 has 4 divisors (see below), whose sum is σ = 10287196560. Its totient is φ = 10058592016.
The previous prime is 10172894267. The next prime is 10172894323. The reversal of 10172894287 is 78249827101.
10172894287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78249827101 = 31 ⋅2524187971.
It is a cyclic number.
It is not a de Polignac number, because 10172894287 - 227 = 10038676559 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 10172894287.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10172894267) by changing a digit.
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 3 ways as a sum of consecutive naturals, for example, 57151003 + ... + 57151180.
It is an arithmetic number, because the mean of its divisors is an integer number (2571799140).
Almost surely, 210172894287 is an apocalyptic number.
10172894287 is a deficient number, since it is larger than the sum of its proper divisors (114302273).
10172894287 is an equidigital number, since it uses as much as digits as its factorization.
10172894287 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 114302272.
The product of its (nonzero) digits is 451584, while the sum is 49.
The spelling of 10172894287 in words is "ten billion, one hundred seventy-two million, eight hundred ninety-four thousand, two hundred eighty-seven".
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