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1028002171 = 71373106961
BaseRepresentation
bin111101010001100…
…001000101111011
32122122100220212111
4331101201011323
54101132032141
6250001353151
734321605610
oct7521410573
92578326774
101028002171
1148830a279
122483387b7
13134c92a11
149a75a507
15603b3381
hex3d46117b

1028002171 has 8 divisors (see below), whose sum is σ = 1175726304. Its totient is φ = 880494720.

The previous prime is 1028002099. The next prime is 1028002193. The reversal of 1028002171 is 1712008201.

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

It is not a de Polignac number, because 1028002171 - 29 = 1028001659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1028002271) 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, 43870 + ... + 63091.

It is an arithmetic number, because the mean of its divisors is an integer number (146965788).

Almost surely, 21028002171 is an apocalyptic number.

1028002171 is a deficient number, since it is larger than the sum of its proper divisors (147724133).

1028002171 is a wasteful number, since it uses less digits than its factorization.

1028002171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108341.

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 1028002171 is about 32062.4729395597. The cubic root of 1028002171 is about 1009.2482629631.

The spelling of 1028002171 in words is "one billion, twenty-eight million, two thousand, one hundred seventy-one".

Divisors: 1 7 1373 9611 106961 748727 146857453 1028002171