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445146025 = 52231574931
BaseRepresentation
bin11010100010000…
…110001110101001
31011000121202112211
4122202012032221
51402424133100
6112101005121
714013451552
oct3242061651
91130552484
10445146025
11209300885
121050b37a1
13712ba51c
1443197329
15291301ba
hex1a8863a9

445146025 has 24 divisors (see below), whose sum is σ = 579766464. Its totient is φ = 338395200.

The previous prime is 445146011. The next prime is 445146059. The reversal of 445146025 is 520641544.

It is a happy number.

It is not a de Polignac number, because 445146025 - 211 = 445143977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87810 + ... + 92740.

It is an arithmetic number, because the mean of its divisors is an integer number (24156936).

Almost surely, 2445146025 is an apocalyptic number.

It is an amenable number.

445146025 is a deficient number, since it is larger than the sum of its proper divisors (134620439).

445146025 is a wasteful number, since it uses less digits than its factorization.

445146025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5121 (or 5116 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 445146025 is about 21098.4839502747. The cubic root of 445146025 is about 763.5441718889.

Adding to 445146025 its reverse (520641544), we get a palindrome (965787569).

The spelling of 445146025 in words is "four hundred forty-five million, one hundred forty-six thousand, twenty-five".

Divisors: 1 5 23 25 115 157 575 785 3611 3925 4931 18055 24655 90275 113413 123275 567065 774167 2835325 3870835 17805841 19354175 89029205 445146025