Base | Representation |
---|---|
bin | 10100001101101… |
… | …10111101010000 |
3 | 102211002001111010 |
4 | 22012312331100 |
5 | 321402221003 |
6 | 24454250520 |
7 | 4126215360 |
oct | 1206667520 |
9 | 384061433 |
10 | 169570128 |
11 | 87799602 |
12 | 48956a40 |
13 | 29191770 |
14 | 187409a0 |
15 | ed48003 |
hex | a1b6f50 |
169570128 has 80 divisors (see below), whose sum is σ = 539159936. Its totient is φ = 44720640.
The previous prime is 169570127. The next prime is 169570133. The reversal of 169570128 is 821075961.
169570128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (169570123) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15043 + ... + 23778.
Almost surely, 2169570128 is an apocalyptic number.
It is an amenable number.
169570128 is an abundant number, since it is smaller than the sum of its proper divisors (369589808).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
169570128 is a wasteful number, since it uses less digits than its factorization.
169570128 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38852 (or 38846 counting only the distinct ones).
The product of its (nonzero) digits is 30240, while the sum is 39.
The square root of 169570128 is about 13021.9095373912. The cubic root of 169570128 is about 553.4985013616.
The spelling of 169570128 in words is "one hundred sixty-nine million, five hundred seventy thousand, one hundred twenty-eight".
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