Base | Representation |
---|---|
bin | 10001010010101… |
… | …01010100001111 |
3 | 101002221110020020 |
4 | 20221111110033 |
5 | 244113143233 |
6 | 22220553223 |
7 | 3410633610 |
oct | 1051252417 |
9 | 332843206 |
10 | 145052943 |
11 | 74973472 |
12 | 406b2813 |
13 | 24089259 |
14 | 1539bc07 |
15 | cb039b3 |
hex | 8a5550f |
145052943 has 16 divisors (see below), whose sum is σ = 223182336. Its totient is φ = 82081440.
The previous prime is 145052939. The next prime is 145052977. The reversal of 145052943 is 349250541.
It is not a de Polignac number, because 145052943 - 22 = 145052939 is a prime.
It is a super-2 number, since 2×1450529432 = 42080712545922498, which contains 22 as substring.
It is an alternating number because its digits alternate between odd and even.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (145052903) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31368 + ... + 35693.
It is an arithmetic number, because the mean of its divisors is an integer number (13948896).
Almost surely, 2145052943 is an apocalyptic number.
145052943 is a deficient number, since it is larger than the sum of its proper divisors (78129393).
145052943 is a wasteful number, since it uses less digits than its factorization.
145052943 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 67174.
The product of its (nonzero) digits is 21600, while the sum is 33.
The square root of 145052943 is about 12043.7927165823. The cubic root of 145052943 is about 525.4227198602.
The spelling of 145052943 in words is "one hundred forty-five million, fifty-two thousand, nine hundred forty-three".
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