Base | Representation |
---|---|
bin | 111001010011… |
… | …1101000111100 |
3 | 2002112112102201 |
4 | 1302213220330 |
5 | 30142444110 |
6 | 2552001244 |
7 | 513251641 |
oct | 162475074 |
9 | 62475381 |
10 | 30046780 |
11 | 15a62655 |
12 | a090224 |
13 | 62c037a |
14 | 3dc1dc8 |
15 | 2987b3a |
hex | 1ca7a3c |
30046780 has 24 divisors (see below), whose sum is σ = 63253008. Its totient is φ = 11989248.
The previous prime is 30046729. The next prime is 30046789. The reversal of 30046780 is 8764003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30046789) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7732 + ... + 10948.
It is an arithmetic number, because the mean of its divisors is an integer number (2635542).
Almost surely, 230046780 is an apocalyptic number.
It is an amenable number.
30046780 is an abundant number, since it is smaller than the sum of its proper divisors (33206228).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30046780 is a wasteful number, since it uses less digits than its factorization.
30046780 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3693 (or 3691 counting only the distinct ones).
The product of its (nonzero) digits is 4032, while the sum is 28.
The square root of 30046780 is about 5481.4943218068. The cubic root of 30046780 is about 310.8846737610.
The spelling of 30046780 in words is "thirty million, forty-six thousand, seven hundred eighty".
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