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1028429270 = 251111638039
BaseRepresentation
bin111101010011001…
…001010111010110
32122200011121201222
4331103021113112
54101234214040
6250014450342
734325335031
oct7523112726
92580147658
101028429270
11488581150
122485039b2
131350b223b
149a82c018
1560449bb5
hex3d4c95d6

1028429270 has 32 divisors (see below), whose sum is σ = 2021448960. Its totient is φ = 373606240.

The previous prime is 1028429267. The next prime is 1028429293. The reversal of 1028429270 is 729248201.

It is a self number, because there is not a number n which added to its sum of digits gives 1028429270.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123911 + ... + 131949.

It is an arithmetic number, because the mean of its divisors is an integer number (63170280).

Almost surely, 21028429270 is an apocalyptic number.

1028429270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1028429270 is a deficient number, since it is larger than the sum of its proper divisors (993019690).

1028429270 is a wasteful number, since it uses less digits than its factorization.

1028429270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9220.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 1028429270 is about 32069.1326667872. The cubic root of 1028429270 is about 1009.3880127465.

The spelling of 1028429270 in words is "one billion, twenty-eight million, four hundred twenty-nine thousand, two hundred seventy".

Divisors: 1 2 5 10 11 22 55 110 1163 2326 5815 8039 11630 12793 16078 25586 40195 63965 80390 88429 127930 176858 442145 884290 9349357 18698714 46746785 93493570 102842927 205685854 514214635 1028429270