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487459540 = 22561399557
BaseRepresentation
bin11101000011100…
…000101011010100
31020222020111210001
4131003200223110
51444242201130
6120211541044
715036223561
oct3503405324
91228214701
10487459540
11230181627
121172ba784
1379cb40c9
1448a4d868
152cbdc6ca
hex1d0e0ad4

487459540 has 24 divisors (see below), whose sum is σ = 1040449032. Its totient is φ = 191786880.

The previous prime is 487459523. The next prime is 487459541. The reversal of 487459540 is 45954784.

It can be written as a sum of positive squares in 4 ways, for example, as 13439556 + 474019984 = 3666^2 + 21772^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487459541) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 198559 + ... + 200998.

It is an arithmetic number, because the mean of its divisors is an integer number (43352043).

Almost surely, 2487459540 is an apocalyptic number.

It is an amenable number.

487459540 is an abundant number, since it is smaller than the sum of its proper divisors (552989492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

487459540 is a wasteful number, since it uses less digits than its factorization.

487459540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399627 (or 399625 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 46.

The square root of 487459540 is about 22078.4859082320. The cubic root of 487459540 is about 787.0086845493.

It can be divided in two parts, 48745 and 9540, that added together give a palindrome (58285).

The spelling of 487459540 in words is "four hundred eighty-seven million, four hundred fifty-nine thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 399557 799114 1598228 1997785 3995570 7991140 24372977 48745954 97491908 121864885 243729770 487459540