Base | Representation |
---|---|
bin | 10000111100011… |
… | …11011000000110 |
3 | 100220110201022202 |
4 | 20132033120012 |
5 | 242342120110 |
6 | 22034354502 |
7 | 3344132666 |
oct | 1036173006 |
9 | 326421282 |
10 | 142145030 |
11 | 73267735 |
12 | 3b72ba32 |
13 | 235ab7b1 |
14 | 14c421a6 |
15 | c72c0a5 |
hex | 878f606 |
142145030 has 8 divisors (see below), whose sum is σ = 255861072. Its totient is φ = 56858008.
The previous prime is 142145027. The next prime is 142145033. The reversal of 142145030 is 30541241.
It is an interprime number because it is at equal distance from previous prime (142145027) and next prime (142145033).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 142144993 and 142145011.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (142145033) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7107242 + ... + 7107261.
It is an arithmetic number, because the mean of its divisors is an integer number (31982634).
Almost surely, 2142145030 is an apocalyptic number.
142145030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
142145030 is a deficient number, since it is larger than the sum of its proper divisors (113716042).
142145030 is a wasteful number, since it uses less digits than its factorization.
142145030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14214510.
The product of its (nonzero) digits is 480, while the sum is 20.
The square root of 142145030 is about 11922.4590584325. The cubic root of 142145030 is about 521.8878983987.
Adding to 142145030 its reverse (30541241), we get a palindrome (172686271).
The spelling of 142145030 in words is "one hundred forty-two million, one hundred forty-five thousand, thirty".
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