Search a number
-
+
142404230 = 25122911587
BaseRepresentation
bin10000111110011…
…10101010000110
3100220221212212202
420133032222012
5242423413410
622044114502
73346262453
oct1037165206
9326855782
10142404230
1173424451
123b835a32
132366c777
1414cac82a
15c77dca5
hex87cea86

142404230 has 16 divisors (see below), whose sum is σ = 256558320. Its totient is φ = 56910432.

The previous prime is 142404209. The next prime is 142404233. The reversal of 142404230 is 32404241.

142404230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142404233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6497 + ... + 18083.

It is an arithmetic number, because the mean of its divisors is an integer number (16034895).

Almost surely, 2142404230 is an apocalyptic number.

142404230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142404230 is a deficient number, since it is larger than the sum of its proper divisors (114154090).

142404230 is a wasteful number, since it uses less digits than its factorization.

142404230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12823.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 142404230 is about 11933.3243482275. The cubic root of 142404230 is about 522.2049248500.

Adding to 142404230 its reverse (32404241), we get a palindrome (174808471).

The spelling of 142404230 in words is "one hundred forty-two million, four hundred four thousand, two hundred thirty".

Divisors: 1 2 5 10 1229 2458 6145 11587 12290 23174 57935 115870 14240423 28480846 71202115 142404230