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1028312703 = 321110386997
BaseRepresentation
bin111101010010101…
…100111001111111
32122122221200211200
4331102230321333
54101222001303
6250012150543
734324341135
oct7522547177
92578850750
101028312703
11488501610
12248468453
13135071172
149a7db755
15604253a3
hex3d4ace7f

1028312703 has 12 divisors (see below), whose sum is σ = 1620371688. Its totient is φ = 623219760.

The previous prime is 1028312689. The next prime is 1028312723. The reversal of 1028312703 is 3072138201.

It is not a de Polignac number, because 1028312703 - 28 = 1028312447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028312723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5193400 + ... + 5193597.

It is an arithmetic number, because the mean of its divisors is an integer number (135030974).

Almost surely, 21028312703 is an apocalyptic number.

1028312703 is a deficient number, since it is larger than the sum of its proper divisors (592058985).

1028312703 is a wasteful number, since it uses less digits than its factorization.

1028312703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10387014 (or 10387011 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1028312703 is about 32067.3151822849. The cubic root of 1028312703 is about 1009.3498750474.

The spelling of 1028312703 in words is "one billion, twenty-eight million, three hundred twelve thousand, seven hundred three".

Divisors: 1 3 9 11 33 99 10386997 31160991 93482973 114256967 342770901 1028312703