Base | Representation |
---|---|
bin | 10100001010011… |
… | …01010000001001 |
3 | 102210021001120022 |
4 | 22011031100021 |
5 | 321244342121 |
6 | 24441110225 |
7 | 4122433154 |
oct | 1205152011 |
9 | 383231508 |
10 | 169137161 |
11 | 87523286 |
12 | 48788375 |
13 | 2906c67b |
14 | 1866ac9b |
15 | ecaeaab |
hex | a14d409 |
169137161 has 8 divisors (see below), whose sum is σ = 173155584. Its totient is φ = 165136320.
The previous prime is 169137127. The next prime is 169137167. The reversal of 169137161 is 161731961.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-169137161 is a prime.
It is a super-2 number, since 2×1691371612 = 57214758462279842, which contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (169137167) 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, 16196 + ... + 24506.
It is an arithmetic number, because the mean of its divisors is an integer number (21644448).
Almost surely, 2169137161 is an apocalyptic number.
It is an amenable number.
169137161 is a deficient number, since it is larger than the sum of its proper divisors (4018423).
169137161 is an equidigital number, since it uses as much as digits as its factorization.
169137161 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8791.
The product of its digits is 6804, while the sum is 35.
The square root of 169137161 is about 13005.2743531230. The cubic root of 169137161 is about 553.0270133639.
The spelling of 169137161 in words is "one hundred sixty-nine million, one hundred thirty-seven thousand, one hundred sixty-one".
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