Base | Representation |
---|---|
bin | 11100001101000111… |
… | …001100111011110100 |
3 | 2220011121010100121000 |
4 | 130031013030323310 |
5 | 444010344402433 |
6 | 21525043323300 |
7 | 2121325144203 |
oct | 341507147364 |
9 | 86147110530 |
10 | 30284762868 |
11 | 11930a60648 |
12 | 5a52380530 |
13 | 2b18389639 |
14 | 16741b323a |
15 | bc3b28113 |
hex | 70d1ccef4 |
30284762868 has 48 divisors (see below), whose sum is σ = 78525496000. Its totient is φ = 10093706784.
The previous prime is 30284762861. The next prime is 30284762923. The reversal of 30284762868 is 86826748203.
30284762868 is a `hidden beast` number, since 3 + 0 + 2 + 8 + 4 + 7 + 628 + 6 + 8 = 666.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30284762861) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1596423 + ... + 1615281.
Almost surely, 230284762868 is an apocalyptic number.
It is an amenable number.
30284762868 is an abundant number, since it is smaller than the sum of its proper divisors (48240733132).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30284762868 is a wasteful number, since it uses less digits than its factorization.
30284762868 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 33741 (or 33733 counting only the distinct ones).
The product of its (nonzero) digits is 6193152, while the sum is 54.
The spelling of 30284762868 in words is "thirty billion, two hundred eighty-four million, seven hundred sixty-two thousand, eight hundred sixty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •