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4288538393 = 192343228223
BaseRepresentation
bin1111111110011101…
…1110011100011001
3102001212122022201022
43333213132130121
532240331212033
61545314132225
7211162655246
oct37747363431
912055568638
104288538393
11190084a407
129b8281075
135346385a9
142c97c25cd
151a176d098
hexff9de719

4288538393 has 16 divisors (see below), whose sum is σ = 4820090880. Its totient is φ = 3795788304.

The previous prime is 4288538381. The next prime is 4288538399. The reversal of 4288538393 is 3938358824.

It is a cyclic number.

It is not a de Polignac number, because 4288538393 - 216 = 4288472857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4288538399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95321 + ... + 132902.

It is an arithmetic number, because the mean of its divisors is an integer number (301255680).

Almost surely, 24288538393 is an apocalyptic number.

4288538393 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

4288538393 is a deficient number, since it is larger than the sum of its proper divisors (531552487).

4288538393 is a wasteful number, since it uses less digits than its factorization.

4288538393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228308.

The product of its digits is 4976640, while the sum is 53.

The square root of 4288538393 is about 65486.9329943005. The cubic root of 4288538393 is about 1624.6872320176.

The spelling of 4288538393 in words is "four billion, two hundred eighty-eight million, five hundred thirty-eight thousand, three hundred ninety-three".

Divisors: 1 19 23 43 437 817 989 18791 228223 4336237 5249129 9813589 99733451 186458191 225712547 4288538393