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38008857 = 3231493697
BaseRepresentation
bin1001000011111…
…1100000011001
32122112001100110
42100333200121
534212240412
63434354533
7641032665
oct220774031
978461313
1038008857
111a500687
121088ba49
137b4a463
1450958a5
15350bd3c
hex243f819

38008857 has 16 divisors (see below), whose sum is σ = 53251200. Its totient is φ = 24068352.

The previous prime is 38008849. The next prime is 38008871. The reversal of 38008857 is 75880083.

It is not a de Polignac number, because 38008857 - 23 = 38008849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38008847) 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, 8433 + ... + 12129.

It is an arithmetic number, because the mean of its divisors is an integer number (3328200).

Almost surely, 238008857 is an apocalyptic number.

It is an amenable number.

38008857 is a deficient number, since it is larger than the sum of its proper divisors (15242343).

38008857 is a wasteful number, since it uses less digits than its factorization.

38008857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3872.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 38008857 is about 6165.1323586765. The cubic root of 38008857 is about 336.2236588404.

The spelling of 38008857 in words is "thirty-eight million, eight thousand, eight hundred fifty-seven".

Divisors: 1 3 23 69 149 447 3427 3697 10281 11091 85031 255093 550853 1652559 12669619 38008857