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1028754484 = 22653393857
BaseRepresentation
bin111101010100011…
…000110000110100
32122200210010211221
4331110120300310
54101330120414
6250025440124
734331161132
oct7524306064
92580703757
101028754484
1148878351a
12248640044
13135197284
149a8b4752
15604b1224
hex3d518c34

1028754484 has 12 divisors (see below), whose sum is σ = 1803081924. Its totient is φ = 513588224.

The previous prime is 1028754443. The next prime is 1028754491. The reversal of 1028754484 is 4844578201.

It can be written as a sum of positive squares in 2 ways, for example, as 106296100 + 922458384 = 10310^2 + 30372^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1028754484.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194317 + ... + 199540.

It is an arithmetic number, because the mean of its divisors is an integer number (150256827).

Almost surely, 21028754484 is an apocalyptic number.

It is an amenable number.

1028754484 is a deficient number, since it is larger than the sum of its proper divisors (774327440).

1028754484 is a wasteful number, since it uses less digits than its factorization.

1028754484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394514 (or 394512 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 43.

The square root of 1028754484 is about 32074.2027804278. The cubic root of 1028754484 is about 1009.4943990993.

The spelling of 1028754484 in words is "one billion, twenty-eight million, seven hundred fifty-four thousand, four hundred eighty-four".

Divisors: 1 2 4 653 1306 2612 393857 787714 1575428 257188621 514377242 1028754484