Base | Representation |
---|---|
bin | 1001000001100101001… |
… | …0100110101101110111 |
3 | 112211012020000001222201 |
4 | 2100121102212231313 |
5 | 10020012020131411 |
6 | 155120440205331 |
7 | 14126053601563 |
oct | 2203122465567 |
9 | 484166001881 |
10 | 155043130231 |
11 | 5a831894580 |
12 | 2606b769847 |
13 | 1180b32c5a2 |
14 | 770b47c6a3 |
15 | 40767053c1 |
hex | 24194a6b77 |
155043130231 has 16 divisors (see below), whose sum is σ = 178197926400. Its totient is φ = 133411492800.
The previous prime is 155043130211. The next prime is 155043130237. The reversal of 155043130231 is 132031340551.
It is a happy number.
155043130231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a cyclic number.
It is not a de Polignac number, because 155043130231 - 27 = 155043130103 is a prime.
It is a super-2 number, since 2×1550431302312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 155043130231.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (155043130237) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92575 + ... + 564496.
It is an arithmetic number, because the mean of its divisors is an integer number (11137370400).
Almost surely, 2155043130231 is an apocalyptic number.
155043130231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
155043130231 is a deficient number, since it is larger than the sum of its proper divisors (23154796169).
155043130231 is a wasteful number, since it uses less digits than its factorization.
155043130231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 658230.
The product of its (nonzero) digits is 5400, while the sum is 28.
Adding to 155043130231 its reverse (132031340551), we get a palindrome (287074470782).
The spelling of 155043130231 in words is "one hundred fifty-five billion, forty-three million, one hundred thirty thousand, two hundred thirty-one".
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