Base | Representation |
---|---|
bin | 10000111110101… |
… | …00111111001010 |
3 | 100221000012102220 |
4 | 20133110333022 |
5 | 242430231104 |
6 | 22044434510 |
7 | 3346431156 |
oct | 1037247712 |
9 | 327005386 |
10 | 142430154 |
11 | 73441979 |
12 | 3b848a36 |
13 | 2367b4c9 |
14 | 14cb8066 |
15 | c7867d9 |
hex | 87d4fca |
142430154 has 32 divisors (see below), whose sum is σ = 289814784. Its totient is φ = 46656000.
The previous prime is 142430153. The next prime is 142430173. The reversal of 142430154 is 451034241.
It is a super-3 number, since 3×1424301543 (a number of 25 digits) contains 333 as substring.
It is not an unprimeable number, because it can be changed into a prime (142430153) 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, 189279 + ... + 190029.
It is an arithmetic number, because the mean of its divisors is an integer number (9056712).
Almost surely, 2142430154 is an apocalyptic number.
142430154 is an abundant number, since it is smaller than the sum of its proper divisors (147384630).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142430154 is a wasteful number, since it uses less digits than its factorization.
142430154 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1262.
The product of its (nonzero) digits is 1920, while the sum is 24.
The square root of 142430154 is about 11934.4105007327. The cubic root of 142430154 is about 522.2366112193.
Adding to 142430154 its reverse (451034241), we get a palindrome (593464395).
The spelling of 142430154 in words is "one hundred forty-two million, four hundred thirty thousand, one hundred fifty-four".
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