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1028411999 = 8922351817
BaseRepresentation
bin111101010011000…
…101001001011111
32122200010202001022
4331103011021133
54101233140444
6250014234355
734325233466
oct7523051137
92580122038
101028411999
1148856a17a
122484b59bb
131350a7414
149a8259dd
15604449ee
hex3d4c525f

1028411999 has 8 divisors (see below), whose sum is σ = 1044650880. Its totient is φ = 1012277376.

The previous prime is 1028411987. The next prime is 1028412071. The reversal of 1028411999 is 9991148201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1028411999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028411939) 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 7 ways as a sum of consecutive naturals, for example, 6062 + ... + 45755.

It is an arithmetic number, because the mean of its divisors is an integer number (130581360).

Almost surely, 21028411999 is an apocalyptic number.

1028411999 is a deficient number, since it is larger than the sum of its proper divisors (16238881).

1028411999 is an equidigital number, since it uses as much as digits as its factorization.

1028411999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52129.

The product of its (nonzero) digits is 46656, while the sum is 44.

The square root of 1028411999 is about 32068.8633880280. The cubic root of 1028411999 is about 1009.3823623051.

The spelling of 1028411999 in words is "one billion, twenty-eight million, four hundred eleven thousand, nine hundred ninety-nine".

Divisors: 1 89 223 19847 51817 4611713 11555191 1028411999