Search a number
-
+
38105233 = 241158113
BaseRepresentation
bin1001000101011…
…1000010010001
32122200221112221
42101113002101
534223331413
63440421041
7641613655
oct221270221
978627487
1038105233
111a567031
1210917781
137b8229a
1450bca65
15352a68d
hex2457091

38105233 has 4 divisors (see below), whose sum is σ = 38263588. Its totient is φ = 37946880.

The previous prime is 38105219. The next prime is 38105237. The reversal of 38105233 is 33250183.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29942784 + 8162449 = 5472^2 + 2857^2 .

It is a cyclic number.

It is not a de Polignac number, because 38105233 - 217 = 37974161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38105198 and 38105207.

It is not an unprimeable number, because it can be changed into a prime (38105237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78816 + ... + 79297.

It is an arithmetic number, because the mean of its divisors is an integer number (9565897).

Almost surely, 238105233 is an apocalyptic number.

It is an amenable number.

38105233 is a deficient number, since it is larger than the sum of its proper divisors (158355).

38105233 is a wasteful number, since it uses less digits than its factorization.

38105233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158354.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 38105233 is about 6172.9436252083. The cubic root of 38105233 is about 336.5075974137.

The spelling of 38105233 in words is "thirty-eight million, one hundred five thousand, two hundred thirty-three".

Divisors: 1 241 158113 38105233