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1028052860 = 225411253723
BaseRepresentation
bin111101010001101…
…101011101111100
32122122110111101212
4331101231131330
54101140142420
6250002423552
734322206442
oct7521553574
92578414355
101028052860
1148834436a
12248361bb8
13134cacb03
149a770b92
15603c33c5
hex3d46d77c

1028052860 has 24 divisors (see below), whose sum is σ = 2211569136. Its totient is φ = 401191040.

The previous prime is 1028052859. The next prime is 1028052877. The reversal of 1028052860 is 682508201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626042 + ... + 627681.

It is an arithmetic number, because the mean of its divisors is an integer number (92148714).

Almost surely, 21028052860 is an apocalyptic number.

1028052860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1028052860 is an abundant number, since it is smaller than the sum of its proper divisors (1183516276).

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

1028052860 is a wasteful number, since it uses less digits than its factorization.

1028052860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253773 (or 1253771 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 1028052860 is about 32063.2634022178. The cubic root of 1028052860 is about 1009.2648507829.

The spelling of 1028052860 in words is "one billion, twenty-eight million, fifty-two thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 1253723 2507446 5014892 6268615 12537230 25074460 51402643 102805286 205610572 257013215 514026430 1028052860