Base | Representation |
---|---|
bin | 111010011111… |
… | …1110010101010 |
3 | 2010201012022201 |
4 | 1310333302222 |
5 | 30322414434 |
6 | 3013210414 |
7 | 521455615 |
oct | 164776252 |
9 | 63635281 |
10 | 30669994 |
11 | 16348903 |
12 | a330a0a |
13 | 647ac34 |
14 | 410517c |
15 | 2a5c614 |
hex | 1d3fcaa |
30669994 has 32 divisors (see below), whose sum is σ = 50440320. Its totient is φ = 13941312.
The previous prime is 30669983. The next prime is 30669997. The reversal of 30669994 is 49996603.
It is a Harshad number since it is a multiple of its sum of digits (46).
It is not an unprimeable number, because it can be changed into a prime (30669997) 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, 110584 + ... + 110860.
It is an arithmetic number, because the mean of its divisors is an integer number (1576260).
Almost surely, 230669994 is an apocalyptic number.
30669994 is a deficient number, since it is larger than the sum of its proper divisors (19770326).
30669994 is a wasteful number, since it uses less digits than its factorization.
30669994 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 414.
The product of its (nonzero) digits is 314928, while the sum is 46.
The square root of 30669994 is about 5538.0496566932. The cubic root of 30669994 is about 313.0193824823.
The spelling of 30669994 in words is "thirty million, six hundred sixty-nine thousand, nine hundred ninety-four".
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