Base | Representation |
---|---|
bin | 10001010011000… |
… | …01100000011000 |
3 | 101010000222201110 |
4 | 20221201200120 |
5 | 244121242442 |
6 | 22222020320 |
7 | 3411232305 |
oct | 1051414030 |
9 | 333028643 |
10 | 145102872 |
11 | 749a7a32 |
12 | 407176a0 |
13 | 240a5bb5 |
14 | 153b20ac |
15 | cb1369c |
hex | 8a61818 |
145102872 has 16 divisors (see below), whose sum is σ = 362757240. Its totient is φ = 48367616.
The previous prime is 145102861. The next prime is 145102877. The reversal of 145102872 is 278201541.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (145102877) 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, 3022953 + ... + 3023000.
Almost surely, 2145102872 is an apocalyptic number.
145102872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
145102872 is an abundant number, since it is smaller than the sum of its proper divisors (217654368).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
145102872 is a wasteful number, since it uses less digits than its factorization.
145102872 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6045962 (or 6045958 counting only the distinct ones).
The product of its (nonzero) digits is 4480, while the sum is 30.
The square root of 145102872 is about 12045.8653487410. The cubic root of 145102872 is about 525.4829985902.
The spelling of 145102872 in words is "one hundred forty-five million, one hundred two thousand, eight hundred seventy-two".
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