Base | Representation |
---|---|
bin | 111001101000… |
… | …0101111000100 |
3 | 2002212002100002 |
4 | 1303100233010 |
5 | 30213340413 |
6 | 2555340432 |
7 | 514552460 |
oct | 163205704 |
9 | 62762302 |
10 | 30215108 |
11 | 16068070 |
12 | a151718 |
13 | 634bb81 |
14 | 40274a0 |
15 | 29bc958 |
hex | 1cd0bc4 |
30215108 has 24 divisors (see below), whose sum is σ = 65924544. Its totient is φ = 11772000.
The previous prime is 30215099. The next prime is 30215117. The reversal of 30215108 is 80151203.
It is an interprime number because it is at equal distance from previous prime (30215099) and next prime (30215117).
It is a self number, because there is not a number n which added to its sum of digits gives 30215108.
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, 48743 + ... + 49358.
It is an arithmetic number, because the mean of its divisors is an integer number (2746856).
Almost surely, 230215108 is an apocalyptic number.
It is an amenable number.
30215108 is an abundant number, since it is smaller than the sum of its proper divisors (35709436).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30215108 is a wasteful number, since it uses less digits than its factorization.
30215108 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 98123 (or 98121 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 20.
The square root of 30215108 is about 5496.8270847826. The cubic root of 30215108 is about 311.4641388070.
The spelling of 30215108 in words is "thirty million, two hundred fifteen thousand, one hundred eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •