Base | Representation |
---|---|
bin | 10001011000011… |
… | …01011001100100 |
3 | 101011100202112100 |
4 | 20230031121210 |
5 | 244311310243 |
6 | 22245052100 |
7 | 3420224100 |
oct | 1054153144 |
9 | 334322470 |
10 | 145806948 |
11 | 75338a11 |
12 | 409b7030 |
13 | 24291501 |
14 | 15516900 |
15 | cc020d3 |
hex | 8b0d664 |
145806948 has 54 divisors (see below), whose sum is σ = 428747046. Its totient is φ = 41658624.
The previous prime is 145806929. The next prime is 145806979. The reversal of 145806948 is 849608541.
145806948 is a `hidden beast` number, since 1 + 4 + 580 + 69 + 4 + 8 = 666.
It can be written as a sum of positive squares in only one way, i.e., 129549924 + 16257024 = 11382^2 + 4032^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 39565 + ... + 43092.
Almost surely, 2145806948 is an apocalyptic number.
145806948 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
145806948 is an abundant number, since it is smaller than the sum of its proper divisors (282940098).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
145806948 is a wasteful number, since it uses less digits than its factorization.
145806948 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 82681 (or 82669 counting only the distinct ones).
The product of its (nonzero) digits is 276480, while the sum is 45.
The square root of 145806948 is about 12075.0547824844. The cubic root of 145806948 is about 526.3315532703.
It can be divided in two parts, 14580 and 6948, that added together give a triangular number (21528 = T207).
The spelling of 145806948 in words is "one hundred forty-five million, eight hundred six thousand, nine hundred forty-eight".
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