Base | Representation |
---|---|
bin | 10100100011111… |
… | …01011010001111 |
3 | 110000112220021110 |
4 | 22101331122033 |
5 | 323123331033 |
6 | 25040503103 |
7 | 4163025363 |
oct | 1221753217 |
9 | 400486243 |
10 | 172480143 |
11 | 893a6980 |
12 | 4991aa93 |
13 | 29970174 |
14 | 18c9b2a3 |
15 | 10220363 |
hex | a47d68f |
172480143 has 8 divisors (see below), whose sum is σ = 250880256. Its totient is φ = 104533400.
The previous prime is 172480141. The next prime is 172480159. The reversal of 172480143 is 341084271.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 172480143 - 21 = 172480141 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 172480143.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (172480141) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2613303 + ... + 2613368.
It is an arithmetic number, because the mean of its divisors is an integer number (31360032).
Almost surely, 2172480143 is an apocalyptic number.
172480143 is a deficient number, since it is larger than the sum of its proper divisors (78400113).
172480143 is a wasteful number, since it uses less digits than its factorization.
172480143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5226685.
The product of its (nonzero) digits is 5376, while the sum is 30.
The square root of 172480143 is about 13133.1695717371. The cubic root of 172480143 is about 556.6467800195.
The spelling of 172480143 in words is "one hundred seventy-two million, four hundred eighty thousand, one hundred forty-three".
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