Base | Representation |
---|---|
bin | 111001011111… |
… | …1000010100010 |
3 | 2002201101220120 |
4 | 1302333002202 |
5 | 30204031001 |
6 | 2554021110 |
7 | 514131243 |
oct | 162770242 |
9 | 62641816 |
10 | 30142626 |
11 | 16018668 |
12 | a117796 |
13 | 6324b97 |
14 | 4008cca |
15 | 29a6236 |
hex | 1cbf0a2 |
30142626 has 32 divisors (see below), whose sum is σ = 65016000. Its totient is φ = 9285120.
The previous prime is 30142621. The next prime is 30142631. The reversal of 30142626 is 62624103.
It is an interprime number because it is at equal distance from previous prime (30142621) and next prime (30142631).
It is a junction number, because it is equal to n+sod(n) for n = 30142596 and 30142605.
It is not an unprimeable number, because it can be changed into a prime (30142621) 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 15 ways as a sum of consecutive naturals, for example, 1450 + ... + 7898.
It is an arithmetic number, because the mean of its divisors is an integer number (2031750).
Almost surely, 230142626 is an apocalyptic number.
30142626 is an abundant number, since it is smaller than the sum of its proper divisors (34873374).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30142626 is a wasteful number, since it uses less digits than its factorization.
30142626 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6514.
The product of its (nonzero) digits is 1728, while the sum is 24.
The square root of 30142626 is about 5490.2300498249. The cubic root of 30142626 is about 311.2148857985.
Adding to 30142626 its reverse (62624103), we get a palindrome (92766729).
The spelling of 30142626 in words is "thirty million, one hundred forty-two thousand, six hundred twenty-six".
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