Base | Representation |
---|---|
bin | 111001110001… |
… | …1001111011110 |
3 | 2002222221022120 |
4 | 1303203033132 |
5 | 30223302120 |
6 | 3001123410 |
7 | 515316456 |
oct | 163431736 |
9 | 62887276 |
10 | 30290910 |
11 | 1610a011 |
12 | a189566 |
13 | 6377520 |
14 | 4046d66 |
15 | 29d5140 |
hex | 1ce33de |
30290910 has 64 divisors (see below), whose sum is σ = 79168320. Its totient is φ = 7372800.
The previous prime is 30290903. The next prime is 30290969. The reversal of 30290910 is 1909203.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39006 + ... + 39774.
It is an arithmetic number, because the mean of its divisors is an integer number (1237005).
Almost surely, 230290910 is an apocalyptic number.
30290910 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 30290910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39584160).
30290910 is an abundant number, since it is smaller than the sum of its proper divisors (48877410).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30290910 is a wasteful number, since it uses less digits than its factorization.
30290910 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 893.
The product of its (nonzero) digits is 486, while the sum is 24.
The square root of 30290910 is about 5503.7178343371. The cubic root of 30290910 is about 311.7243826628.
The spelling of 30290910 in words is "thirty million, two hundred ninety thousand, nine hundred ten".
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