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1028969355 = 35471459531
BaseRepresentation
bin111101010101001…
…101001110001011
32122201012001121010
4331111031032023
54101404004410
6250034215003
734333044441
oct7525151613
92581161533
101028969355
1148890a9a7
12248724463
1313524100b
149a92cb91
1560504c20
hex3d54d38b

1028969355 has 16 divisors (see below), whose sum is σ = 1681380864. Its totient is φ = 537107040.

The previous prime is 1028969351. The next prime is 1028969399. The reversal of 1028969355 is 5539698201.

It is a happy number.

It is not a de Polignac number, because 1028969355 - 22 = 1028969351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1028969351) by changing a digit.

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, 729061 + ... + 730470.

It is an arithmetic number, because the mean of its divisors is an integer number (105086304).

Almost surely, 21028969355 is an apocalyptic number.

1028969355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1028969355 is a deficient number, since it is larger than the sum of its proper divisors (652411509).

1028969355 is a wasteful number, since it uses less digits than its factorization.

1028969355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459586.

The product of its (nonzero) digits is 583200, while the sum is 48.

The square root of 1028969355 is about 32077.5521977597. The cubic root of 1028969355 is about 1009.5646769529.

The spelling of 1028969355 in words is "one billion, twenty-eight million, nine hundred sixty-nine thousand, three hundred fifty-five".

Divisors: 1 3 5 15 47 141 235 705 1459531 4378593 7297655 21892965 68597957 205793871 342989785 1028969355