Base | Representation |
---|---|
bin | 1000011100111101110… |
… | …1100011000011010111 |
3 | 111212211020210110220020 |
4 | 2013033131203003113 |
5 | 4334344411101411 |
6 | 150413255440223 |
7 | 13330360211442 |
oct | 2071735430327 |
9 | 455736713806 |
10 | 145214550231 |
11 | 56648911993 |
12 | 24188086073 |
13 | 1090300088a |
14 | 7057dbc659 |
15 | 3b9d908606 |
hex | 21cf7630d7 |
145214550231 has 8 divisors (see below), whose sum is σ = 202037635200. Its totient is φ = 92600582712.
The previous prime is 145214550223. The next prime is 145214550251. The reversal of 145214550231 is 132055412541.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 145214550231 - 23 = 145214550223 is a prime.
It is a super-3 number, since 3×1452145502313 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a junction number, because it is equal to n+sod(n) for n = 145214550192 and 145214550201.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (145214550211) 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, 1052279281 + ... + 1052279418.
It is an arithmetic number, because the mean of its divisors is an integer number (25254704400).
Almost surely, 2145214550231 is an apocalyptic number.
145214550231 is a deficient number, since it is larger than the sum of its proper divisors (56823084969).
145214550231 is a wasteful number, since it uses less digits than its factorization.
145214550231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2104558725.
The product of its (nonzero) digits is 24000, while the sum is 33.
Adding to 145214550231 its reverse (132055412541), we get a palindrome (277269962772).
The spelling of 145214550231 in words is "one hundred forty-five billion, two hundred fourteen million, five hundred fifty thousand, two hundred thirty-one".
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