Base | Representation |
---|---|
bin | 10001010011000… |
… | …01011010010000 |
3 | 101010000222011221 |
4 | 20221201122100 |
5 | 244121234410 |
6 | 22222014424 |
7 | 3411231205 |
oct | 1051413220 |
9 | 333028157 |
10 | 145102480 |
11 | 749a7706 |
12 | 40717414 |
13 | 240a5973 |
14 | 153b1cac |
15 | cb134da |
hex | 8a61690 |
145102480 has 40 divisors (see below), whose sum is σ = 357211512. Its totient is φ = 54626304.
The previous prime is 145102471. The next prime is 145102501. The reversal of 145102480 is 84201541.
It can be written as a sum of positive squares in 4 ways, for example, as 30869136 + 114233344 = 5556^2 + 10688^2 .
It is a tau number, because it is divible by the number of its divisors (40).
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, 51987 + ... + 54706.
Almost surely, 2145102480 is an apocalyptic number.
145102480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
145102480 is an abundant number, since it is smaller than the sum of its proper divisors (212109032).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
145102480 is a wasteful number, since it uses less digits than its factorization.
145102480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 106723 (or 106717 counting only the distinct ones).
The product of its (nonzero) digits is 1280, while the sum is 25.
The square root of 145102480 is about 12045.8490775869. The cubic root of 145102480 is about 525.4825253868.
The spelling of 145102480 in words is "one hundred forty-five million, one hundred two thousand, four hundred eighty".
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