Base | Representation |
---|---|
bin | 1000100101100… |
… | …00010000111101 |
3 | 12000112020221010 |
4 | 10102300100331 |
5 | 121414301044 |
6 | 11051425433 |
7 | 1533126600 |
oct | 422602075 |
9 | 160466833 |
10 | 72025149 |
11 | 37724619 |
12 | 20155279 |
13 | 11bca541 |
14 | 97cc337 |
15 | 64cabb9 |
hex | 44b043d |
72025149 has 24 divisors (see below), whose sum is σ = 112371168. Its totient is φ = 40914720.
The previous prime is 72025139. The next prime is 72025189. The reversal of 72025149 is 94152027.
It is not a de Polignac number, because 72025149 - 221 = 69927997 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72025139) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25254 + ... + 27960.
It is an arithmetic number, because the mean of its divisors is an integer number (4682132).
Almost surely, 272025149 is an apocalyptic number.
It is an amenable number.
72025149 is a deficient number, since it is larger than the sum of its proper divisors (40346019).
72025149 is a wasteful number, since it uses less digits than its factorization.
72025149 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2905 (or 2898 counting only the distinct ones).
The product of its (nonzero) digits is 5040, while the sum is 30.
The square root of 72025149 is about 8486.7631638923. The cubic root of 72025149 is about 416.0651960349.
The spelling of 72025149 in words is "seventy-two million, twenty-five thousand, one hundred forty-nine".
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