Base | Representation |
---|---|
bin | 111001011010… |
… | …0101001001010 |
3 | 2002122020111101 |
4 | 1302310221022 |
5 | 30201200132 |
6 | 2553052014 |
7 | 513563140 |
oct | 162645112 |
9 | 62566441 |
10 | 30100042 |
11 | 15a99675 |
12 | a0b700a |
13 | 630b69b |
14 | 3dd7590 |
15 | 29987e7 |
hex | 1cb4a4a |
30100042 has 16 divisors (see below), whose sum is σ = 51742080. Its totient is φ = 12864528.
The previous prime is 30100019. The next prime is 30100051. The reversal of 30100042 is 24000103.
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, 2683 + ... + 8209.
It is an arithmetic number, because the mean of its divisors is an integer number (3233880).
Almost surely, 230100042 is an apocalyptic number.
30100042 is a deficient number, since it is larger than the sum of its proper divisors (21642038).
30100042 is a wasteful number, since it uses less digits than its factorization.
30100042 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5925.
The product of its (nonzero) digits is 24, while the sum is 10.
The square root of 30100042 is about 5486.3505174205. The cubic root of 30100042 is about 311.0682604342.
Adding to 30100042 its reverse (24000103), we get a palindrome (54100145).
The spelling of 30100042 in words is "thirty million, one hundred thousand, forty-two".
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