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8428107 = 31729721
BaseRepresentation
bin100000001001…
…101001001011
3120212012012010
4200021221023
54124144412
6500351003
7131431512
oct40115113
916765163
108428107
114837186
1229a5463
13199125c
141195679
15b1733c
hex809a4b

8428107 has 12 divisors (see below), whose sum is σ = 11938616. Its totient is φ = 5287680.

The previous prime is 8428099. The next prime is 8428139. The reversal of 8428107 is 7018248.

8428107 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8428107 - 23 = 8428099 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8428157) 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, 3994 + ... + 5727.

Almost surely, 28428107 is an apocalyptic number.

8428107 is a deficient number, since it is larger than the sum of its proper divisors (3510509).

8428107 is a wasteful number, since it uses less digits than its factorization.

8428107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9758 (or 9741 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 8428107 is about 2903.1202179724. The cubic root of 8428107 is about 203.5057479355.

The spelling of 8428107 in words is "eight million, four hundred twenty-eight thousand, one hundred seven".

Divisors: 1 3 17 51 289 867 9721 29163 165257 495771 2809369 8428107