Base | Representation |
---|---|
bin | 111010001001… |
… | …0101111010100 |
3 | 2010100211012010 |
4 | 1310102233110 |
5 | 30301013320 |
6 | 3005224220 |
7 | 520056615 |
oct | 164225724 |
9 | 63324163 |
10 | 30485460 |
11 | 162321a5 |
12 | a262070 |
13 | 6414c45 |
14 | 4097c0c |
15 | 2a22ae0 |
hex | 1d12bd4 |
30485460 has 24 divisors (see below), whose sum is σ = 85359456. Its totient is φ = 8129440.
The previous prime is 30485459. The next prime is 30485473. The reversal of 30485460 is 6458403.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253986 + ... + 254105.
It is an arithmetic number, because the mean of its divisors is an integer number (3556644).
Almost surely, 230485460 is an apocalyptic number.
30485460 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30485460 is an abundant number, since it is smaller than the sum of its proper divisors (54873996).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30485460 is a wasteful number, since it uses less digits than its factorization.
30485460 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 508103 (or 508101 counting only the distinct ones).
The product of its (nonzero) digits is 11520, while the sum is 30.
The square root of 30485460 is about 5521.3639619210. The cubic root of 30485460 is about 312.3903316510.
The spelling of 30485460 in words is "thirty million, four hundred eighty-five thousand, four hundred sixty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.063 sec. • engine limits •