Base | Representation |
---|---|
bin | 10010011000101… |
… | …01110110011001 |
3 | 101202012201000111 |
4 | 21030111312121 |
5 | 303440331134 |
6 | 23145404321 |
7 | 3551635432 |
oct | 1114256631 |
9 | 352181014 |
10 | 154230169 |
11 | 7a071455 |
12 | 437996a1 |
13 | 25c50472 |
14 | 166aa489 |
15 | d817c64 |
hex | 9315d99 |
154230169 has 2 divisors, whose sum is σ = 154230170. Its totient is φ = 154230168.
The previous prime is 154230127. The next prime is 154230191. The reversal of 154230169 is 961032451.
154230169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 77440000 + 76790169 = 8800^2 + 8763^2 .
It is an emirp because it is prime and its reverse (961032451) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 154230169 - 215 = 154197401 is a prime.
It is a super-2 number, since 2×1542301692 = 47573890059537122, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 154230169.
It is not a weakly prime, because it can be changed into another prime (154230269) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77115084 + 77115085.
It is an arithmetic number, because the mean of its divisors is an integer number (77115085).
Almost surely, 2154230169 is an apocalyptic number.
It is an amenable number.
154230169 is a deficient number, since it is larger than the sum of its proper divisors (1).
154230169 is an equidigital number, since it uses as much as digits as its factorization.
154230169 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 6480, while the sum is 31.
The square root of 154230169 is about 12418.9439567139. The cubic root of 154230169 is about 536.2777494637.
The spelling of 154230169 in words is "one hundred fifty-four million, two hundred thirty thousand, one hundred sixty-nine".
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