Base | Representation |
---|---|
bin | 1000011110011011101… |
… | …1000001110010011111 |
3 | 111220211200102122010122 |
4 | 2013212323001302133 |
5 | 4341201141414041 |
6 | 150520320025155 |
7 | 13343206614206 |
oct | 2074673016237 |
9 | 456750378118 |
10 | 145608154271 |
11 | 56830009488 |
12 | 24277a621bb |
13 | 10966712b88 |
14 | 709439a23d |
15 | 3bc3256c4b |
hex | 21e6ec1c9f |
145608154271 has 4 divisors (see below), whose sum is σ = 145621298592. Its totient is φ = 145595009952.
The previous prime is 145608154267. The next prime is 145608154283. The reversal of 145608154271 is 172451806541.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 172451806541 = 7 ⋅24635972363.
It is a cyclic number.
It is not a de Polignac number, because 145608154271 - 22 = 145608154267 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (145608154871) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6555530 + ... + 6577703.
It is an arithmetic number, because the mean of its divisors is an integer number (36405324648).
Almost surely, 2145608154271 is an apocalyptic number.
145608154271 is a deficient number, since it is larger than the sum of its proper divisors (13144321).
145608154271 is a wasteful number, since it uses less digits than its factorization.
145608154271 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13144320.
The product of its (nonzero) digits is 268800, while the sum is 44.
The spelling of 145608154271 in words is "one hundred forty-five billion, six hundred eight million, one hundred fifty-four thousand, two hundred seventy-one".
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