Base | Representation |
---|---|
bin | 10001010010111… |
… | …01100110010110 |
3 | 101010000011202210 |
4 | 20221131212112 |
5 | 244120234440 |
6 | 22221414250 |
7 | 3411134535 |
oct | 1051354626 |
9 | 333004683 |
10 | 145086870 |
11 | 74996a05 |
12 | 4070a386 |
13 | 2409b826 |
14 | 153aa31c |
15 | cb0da80 |
hex | 8a5d996 |
145086870 has 16 divisors (see below), whose sum is σ = 348208560. Its totient is φ = 38689824.
The previous prime is 145086863. The next prime is 145086871. The reversal of 145086870 is 78680541.
145086870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (145086871) 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, 2418085 + ... + 2418144.
It is an arithmetic number, because the mean of its divisors is an integer number (21763035).
Almost surely, 2145086870 is an apocalyptic number.
145086870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
145086870 is an abundant number, since it is smaller than the sum of its proper divisors (203121690).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
145086870 is a wasteful number, since it uses less digits than its factorization.
145086870 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4836239.
The product of its (nonzero) digits is 53760, while the sum is 39.
The square root of 145086870 is about 12045.2011191179. The cubic root of 145086870 is about 525.4636810583.
The spelling of 145086870 in words is "one hundred forty-five million, eighty-six thousand, eight hundred seventy".
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