Base | Representation |
---|---|
bin | 111001001110… |
… | …0101111101010 |
3 | 2002110021012220 |
4 | 1302130233222 |
5 | 30140032104 |
6 | 2551014510 |
7 | 513004560 |
oct | 162345752 |
9 | 62407186 |
10 | 30002154 |
11 | 15a32076 |
12 | a06a436 |
13 | 62a5c70 |
14 | 3dada30 |
15 | 29797d9 |
hex | 1c9cbea |
30002154 has 32 divisors (see below), whose sum is σ = 73852800. Its totient is φ = 7912512.
The previous prime is 30002123. The next prime is 30002207. The reversal of 30002154 is 45120003.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26929 + ... + 28020.
It is an arithmetic number, because the mean of its divisors is an integer number (2307900).
Almost surely, 230002154 is an apocalyptic number.
30002154 is an abundant number, since it is smaller than the sum of its proper divisors (43850646).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30002154 is a wasteful number, since it uses less digits than its factorization.
30002154 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 54974.
The product of its (nonzero) digits is 120, while the sum is 15.
The square root of 30002154 is about 5477.4222039204. The cubic root of 30002154 is about 310.7306870605.
Adding to 30002154 its reverse (45120003), we get a palindrome (75122157).
The spelling of 30002154 in words is "thirty million, two thousand, one hundred fifty-four".
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