Base | Representation |
---|---|
bin | 111010000111… |
… | …1110111001110 |
3 | 2010100020000202 |
4 | 1310033313032 |
5 | 30300124203 |
6 | 3005053502 |
7 | 520010354 |
oct | 164176716 |
9 | 63306022 |
10 | 30473678 |
11 | 16224364 |
12 | a257292 |
13 | 640c781 |
14 | 40937d4 |
15 | 2a1e388 |
hex | 1d0fdce |
30473678 has 8 divisors (see below), whose sum is σ = 45791472. Its totient is φ = 15209856.
The previous prime is 30473671. The next prime is 30473687. The reversal of 30473678 is 87637403.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30473671) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12050 + ... + 14357.
It is an arithmetic number, because the mean of its divisors is an integer number (5723934).
Almost surely, 230473678 is an apocalyptic number.
30473678 is a deficient number, since it is larger than the sum of its proper divisors (15317794).
30473678 is a wasteful number, since it uses less digits than its factorization.
30473678 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26986.
The product of its (nonzero) digits is 84672, while the sum is 38.
The square root of 30473678 is about 5520.2969123046. The cubic root of 30473678 is about 312.3500823305.
The spelling of 30473678 in words is "thirty million, four hundred seventy-three thousand, six hundred seventy-eight".
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