Base | Representation |
---|---|
bin | 10001010010010… |
… | …11110110000001 |
3 | 101002212111000021 |
4 | 20221023312001 |
5 | 244110423040 |
6 | 22220053441 |
7 | 3410412523 |
oct | 1051136601 |
9 | 332774007 |
10 | 145014145 |
11 | 74947301 |
12 | 40694281 |
13 | 240746b3 |
14 | 1538ba13 |
15 | cae724a |
hex | 8a4bd81 |
145014145 has 8 divisors (see below), whose sum is σ = 175614120. Its totient is φ = 114946560.
The previous prime is 145014119. The next prime is 145014151. The reversal of 145014145 is 541410541.
It can be written as a sum of positive squares in 4 ways, for example, as 4804864 + 140209281 = 2192^2 + 11841^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 145014145 - 211 = 145012097 is a prime.
It is an alternating number because its digits alternate between odd and even.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132496 + ... + 133585.
It is an arithmetic number, because the mean of its divisors is an integer number (21951765).
Almost surely, 2145014145 is an apocalyptic number.
It is an amenable number.
145014145 is a deficient number, since it is larger than the sum of its proper divisors (30599975).
145014145 is a wasteful number, since it uses less digits than its factorization.
145014145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 266195.
The product of its (nonzero) digits is 1600, while the sum is 25.
The square root of 145014145 is about 12042.1819036253. The cubic root of 145014145 is about 525.3758699123.
Adding to 145014145 its reverse (541410541), we get a palindrome (686424686).
The spelling of 145014145 in words is "one hundred forty-five million, fourteen thousand, one hundred forty-five".
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