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8428393954 = 271169335059
BaseRepresentation
bin1111101100101111…
…10001010111100010
3210202101111202221001
413312113301113202
5114230132101304
63512201422214
7415602111061
oct76627612742
923671452831
108428393954
113635677142
12177279a96a
13a44216676
1459d5401d8
15344e1bda4
hex1f65f15e2

8428393954 has 16 divisors (see below), whose sum is σ = 12828594240. Its totient is φ = 4152269520.

The previous prime is 8428393937. The next prime is 8428393991. The reversal of 8428393954 is 4593938248.

It is a junction number, because it is equal to n+sod(n) for n = 8428393895 and 8428393904.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222877 + ... + 257935.

It is an arithmetic number, because the mean of its divisors is an integer number (801787140).

Almost surely, 28428393954 is an apocalyptic number.

8428393954 is a deficient number, since it is larger than the sum of its proper divisors (4400200286).

8428393954 is a wasteful number, since it uses less digits than its factorization.

8428393954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36825.

The product of its digits is 7464960, while the sum is 55.

The square root of 8428393954 is about 91806.2849373615. The cubic root of 8428393954 is about 2035.0805751409.

The spelling of 8428393954 in words is "eight billion, four hundred twenty-eight million, three hundred ninety-three thousand, nine hundred fifty-four".

Divisors: 1 2 71 142 1693 3386 35059 70118 120203 240406 2489189 4978378 59354887 118709774 4214196977 8428393954