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1028551043 = 1397815663
BaseRepresentation
bin111101010011100…
…111000110000011
32122200101210210002
4331103213012003
54101302113133
6250021230215
734326353042
oct7523470603
92580353702
101028551043
11488654693
1224856236b
131351257b0
149a860559
1560470ce8
hex3d4e7183

1028551043 has 8 divisors (see below), whose sum is σ = 1119091008. Its totient is φ = 939642624.

The previous prime is 1028551037. The next prime is 1028551057. The reversal of 1028551043 is 3401558201.

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

It is a cyclic number.

It is not a de Polignac number, because 1028551043 - 26 = 1028550979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1028550997 and 1028551015.

It is not an unprimeable number, because it can be changed into a prime (1028551343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406571 + ... + 409092.

It is an arithmetic number, because the mean of its divisors is an integer number (139886376).

Almost surely, 21028551043 is an apocalyptic number.

1028551043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1028551043 is a deficient number, since it is larger than the sum of its proper divisors (90539965).

1028551043 is an equidigital number, since it uses as much as digits as its factorization.

1028551043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815773.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 1028551043 is about 32071.0312119832. The cubic root of 1028551043 is about 1009.4278506362.

The spelling of 1028551043 in words is "one billion, twenty-eight million, five hundred fifty-one thousand, forty-three".

Divisors: 1 13 97 1261 815663 10603619 79119311 1028551043