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1030044428 = 22771518131
BaseRepresentation
bin111101011001010…
…011101100001100
32122210012200022122
4331121103230030
54102142410203
6250113232112
734345142660
oct7531235414
92583180278
101030044428
11489484696
12248b62638
1313552945a
149ab2c8a0
1560668538
hex3d653b0c

1030044428 has 24 divisors (see below), whose sum is σ = 2089108224. Its totient is φ = 435229200.

The previous prime is 1030044427. The next prime is 1030044451. The reversal of 1030044428 is 8244400301.

It is a junction number, because it is equal to n+sod(n) for n = 1030044397 and 1030044406.

It is not an unprimeable number, because it can be changed into a prime (1030044427) 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, 257078 + ... + 261053.

It is an arithmetic number, because the mean of its divisors is an integer number (87046176).

Almost surely, 21030044428 is an apocalyptic number.

It is an amenable number.

1030044428 is an abundant number, since it is smaller than the sum of its proper divisors (1059063796).

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

1030044428 is a wasteful number, since it uses less digits than its factorization.

1030044428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518213 (or 518211 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 1030044428 is about 32094.3052269402. The cubic root of 1030044428 is about 1009.9161542004.

Adding to 1030044428 its reverse (8244400301), we get a palindrome (9274444729).

The spelling of 1030044428 in words is "one billion, thirty million, forty-four thousand, four hundred twenty-eight".

Divisors: 1 2 4 7 14 28 71 142 284 497 994 1988 518131 1036262 2072524 3626917 7253834 14507668 36787301 73574602 147149204 257511107 515022214 1030044428