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450541540 = 22543152267
BaseRepresentation
bin11010110110101…
…011011111100100
31011101202212210201
4122312223133210
51410314312130
6112412400244
714110353121
oct3266533744
91141685721
10450541540
11211356589
12106a76084
1372459337
1443b9d748
1529848bca
hex1adab7e4

450541540 has 24 divisors (see below), whose sum is σ = 948350592. Its totient is φ = 179795040.

The previous prime is 450541537. The next prime is 450541541. The reversal of 450541540 is 45145054.

It is a junction number, because it is equal to n+sod(n) for n = 450541499 and 450541508.

It is not an unprimeable number, because it can be changed into a prime (450541541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17514 + ... + 34753.

It is an arithmetic number, because the mean of its divisors is an integer number (39514608).

Almost surely, 2450541540 is an apocalyptic number.

It is an amenable number.

450541540 is an abundant number, since it is smaller than the sum of its proper divisors (497809052).

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

450541540 is a wasteful number, since it uses less digits than its factorization.

450541540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52707 (or 52705 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 450541540 is about 21225.9638179283. The cubic root of 450541540 is about 766.6167070994.

Adding to 450541540 its reverse (45145054), we get a palindrome (495686594).

The spelling of 450541540 in words is "four hundred fifty million, five hundred forty-one thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 431 862 1724 2155 4310 8620 52267 104534 209068 261335 522670 1045340 22527077 45054154 90108308 112635385 225270770 450541540