Base | Representation |
---|---|
bin | 111001110000… |
… | …1110001100010 |
3 | 2002222122001220 |
4 | 1303201301202 |
5 | 30223104043 |
6 | 3001035510 |
7 | 515263110 |
oct | 163416142 |
9 | 62878056 |
10 | 30284898 |
11 | 16105546 |
12 | a185b96 |
13 | 6374877 |
14 | 4044ab0 |
15 | 29d3483 |
hex | 1ce1c62 |
30284898 has 32 divisors (see below), whose sum is σ = 72867840. Its totient is φ = 8197200.
The previous prime is 30284897. The next prime is 30284899. The reversal of 30284898 is 89848203.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (30284897) and next prime (30284899).
It is a Harshad number since it is a multiple of its sum of digits (42).
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (30284897) 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, 18178 + ... + 19773.
It is an arithmetic number, because the mean of its divisors is an integer number (2277120).
Almost surely, 230284898 is an apocalyptic number.
30284898 is a gapful number since it is divisible by the number (38) formed by its first and last digit.
30284898 is an abundant number, since it is smaller than the sum of its proper divisors (42582942).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30284898 is a wasteful number, since it uses less digits than its factorization.
30284898 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 37982.
The product of its (nonzero) digits is 110592, while the sum is 42.
The square root of 30284898 is about 5503.1716309779. The cubic root of 30284898 is about 311.7037580927.
The spelling of 30284898 in words is "thirty million, two hundred eighty-four thousand, eight hundred ninety-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.074 sec. • engine limits •