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1028620883 = 9710604339
BaseRepresentation
bin111101010011111…
…000001001010011
32122200112100120202
4331103320021103
54101311332013
6250022525415
734330063463
oct7523701123
92580470522
101028620883
114886a2104
1224859686b
1313514b514
149a87bba3
1560486858
hex3d4f8253

1028620883 has 4 divisors (see below), whose sum is σ = 1039225320. Its totient is φ = 1018016448.

The previous prime is 1028620877. The next prime is 1028620907. The reversal of 1028620883 is 3880268201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1028620883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1028620823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5302073 + ... + 5302266.

It is an arithmetic number, because the mean of its divisors is an integer number (259806330).

Almost surely, 21028620883 is an apocalyptic number.

1028620883 is a deficient number, since it is larger than the sum of its proper divisors (10604437).

1028620883 is an equidigital number, since it uses as much as digits as its factorization.

1028620883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10604436.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 1028620883 is about 32072.1200265901. The cubic root of 1028620883 is about 1009.4506972889.

The spelling of 1028620883 in words is "one billion, twenty-eight million, six hundred twenty thousand, eight hundred eighty-three".

Divisors: 1 97 10604339 1028620883