Base | Representation |
---|---|
bin | 10100100001000… |
… | …10100100101010 |
3 | 102222211222220010 |
4 | 22100202210222 |
5 | 323024424244 |
6 | 25024512350 |
7 | 4156615545 |
oct | 1220424452 |
9 | 388758803 |
10 | 172108074 |
11 | 89172386 |
12 | 4977b6b6 |
13 | 2986c9c8 |
14 | 18c0185c |
15 | 10199eb9 |
hex | a42292a |
172108074 has 16 divisors (see below), whose sum is σ = 350051040. Its totient is φ = 56396880.
The previous prime is 172108073. The next prime is 172108087. The reversal of 172108074 is 470801271.
It is not an unprimeable number, because it can be changed into a prime (172108073) 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, 242737 + ... + 243444.
It is an arithmetic number, because the mean of its divisors is an integer number (21878190).
Almost surely, 2172108074 is an apocalyptic number.
172108074 is an abundant number, since it is smaller than the sum of its proper divisors (177942966).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
172108074 is a wasteful number, since it uses less digits than its factorization.
172108074 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 486245.
The product of its (nonzero) digits is 3136, while the sum is 30.
The square root of 172108074 is about 13118.9966841981. The cubic root of 172108074 is about 556.2462312752.
The spelling of 172108074 in words is "one hundred seventy-two million, one hundred eight thousand, seventy-four".
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