Search a number
-
+
38161227 = 31347109191
BaseRepresentation
bin1001000110010…
…0101101001011
32122210210100210
42101210231023
534232124402
63441532203
7642236136
oct221445513
978723323
1038161227
111a5a5105
1210944063
137ba1910
1450d521d
15353c06c
hex2464b4b

38161227 has 32 divisors (see below), whose sum is σ = 56770560. Its totient is φ = 22654080.

The previous prime is 38161183. The next prime is 38161231. The reversal of 38161227 is 72216183.

It is not a de Polignac number, because 38161227 - 210 = 38160203 is a prime.

It is a super-2 number, since 2×381612272 = 2912558492291058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38161194 and 38161203.

It is not an unprimeable number, because it can be changed into a prime (38161267) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199702 + ... + 199892.

It is an arithmetic number, because the mean of its divisors is an integer number (1774080).

Almost surely, 238161227 is an apocalyptic number.

38161227 is a deficient number, since it is larger than the sum of its proper divisors (18609333).

38161227 is a wasteful number, since it uses less digits than its factorization.

38161227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363.

The product of its digits is 4032, while the sum is 30.

The square root of 38161227 is about 6177.4773977733. The cubic root of 38161227 is about 336.6723445545.

The spelling of 38161227 in words is "thirty-eight million, one hundred sixty-one thousand, two hundred twenty-seven".

Divisors: 1 3 13 39 47 109 141 191 327 573 611 1417 1833 2483 4251 5123 7449 8977 15369 20819 26931 62457 66599 116701 199797 270647 350103 811941 978493 2935479 12720409 38161227