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4238055 = 33531393
BaseRepresentation
bin10000001010101011100111
321222022112000
4100022223213
52041104210
6230500343
751010563
oct20125347
97868460
104238055
112435128
1215046b3
13b55033
147c46a3
1558aac0
hex40aae7

4238055 has 16 divisors (see below), whose sum is σ = 7534560. Its totient is φ = 2260224.

The previous prime is 4238053. The next prime is 4238057. The reversal of 4238055 is 5508324.

It is an interprime number because it is at equal distance from previous prime (4238053) and next prime (4238057).

It is not a de Polignac number, because 4238055 - 21 = 4238053 is a prime.

It is a super-2 number, since 2×42380552 = 35922220366050, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4238053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15562 + ... + 15831.

It is an arithmetic number, because the mean of its divisors is an integer number (470910).

Almost surely, 24238055 is an apocalyptic number.

4238055 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4238055 is a deficient number, since it is larger than the sum of its proper divisors (3296505).

4238055 is a wasteful number, since it uses less digits than its factorization.

4238055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31407 (or 31401 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 4238055 is about 2058.6536862717. The cubic root of 4238055 is about 161.8286940889.

The spelling of 4238055 in words is "four million, two hundred thirty-eight thousand, fifty-five".

Divisors: 1 3 5 9 15 27 45 135 31393 94179 156965 282537 470895 847611 1412685 4238055