Base | Representation |
---|---|
bin | 111001011111… |
… | …1101100010000 |
3 | 2002201112120110 |
4 | 1302333230100 |
5 | 30204122141 |
6 | 2554041320 |
7 | 514142106 |
oct | 162775420 |
9 | 62645513 |
10 | 30145296 |
11 | 1601a675 |
12 | a119240 |
13 | 632616c |
14 | 4009c76 |
15 | 29a6e16 |
hex | 1cbfb10 |
30145296 has 40 divisors (see below), whose sum is σ = 78075360. Its totient is φ = 10022656.
The previous prime is 30145289. The next prime is 30145303. The reversal of 30145296 is 69254103.
It is an interprime number because it is at equal distance from previous prime (30145289) and next prime (30145303).
It is an alternating number because its digits alternate between odd and even.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31156 + ... + 32108.
It is an arithmetic number, because the mean of its divisors is an integer number (1951884).
Almost surely, 230145296 is an apocalyptic number.
It is an amenable number.
30145296 is an abundant number, since it is smaller than the sum of its proper divisors (47930064).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30145296 is a wasteful number, since it uses less digits than its factorization.
30145296 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1623 (or 1617 counting only the distinct ones).
The product of its (nonzero) digits is 6480, while the sum is 30.
The square root of 30145296 is about 5490.4732036501. The cubic root of 30145296 is about 311.2240745490.
Adding to 30145296 its reverse (69254103), we get a palindrome (99399399).
The spelling of 30145296 in words is "thirty million, one hundred forty-five thousand, two hundred ninety-six".
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