Base | Representation |
---|---|
bin | 111010010011… |
… | …1011001010000 |
3 | 2010112010020121 |
4 | 1310213121100 |
5 | 30311220224 |
6 | 3011120024 |
7 | 520561360 |
oct | 164473120 |
9 | 63463217 |
10 | 30570064 |
11 | 1628a818 |
12 | a2a3014 |
13 | 64445c5 |
14 | 40ba9a0 |
15 | 2a3cbe4 |
hex | 1d27650 |
30570064 has 40 divisors (see below), whose sum is σ = 68636480. Its totient is φ = 12918528.
The previous prime is 30570019. The next prime is 30570109. The reversal of 30570064 is 46007503.
It is an interprime number because it is at equal distance from previous prime (30570019) and next prime (30570109).
It is a super-3 number, since 3×305700643 (a number of 23 digits) contains 333 as substring.
It is a congruent number.
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, 6307 + ... + 10045.
It is an arithmetic number, because the mean of its divisors is an integer number (1715912).
Almost surely, 230570064 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30570064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34318240).
30570064 is an abundant number, since it is smaller than the sum of its proper divisors (38066416).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30570064 is a wasteful number, since it uses less digits than its factorization.
30570064 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3827 (or 3821 counting only the distinct ones).
The product of its (nonzero) digits is 2520, while the sum is 25.
The square root of 30570064 is about 5529.0201663586. The cubic root of 30570064 is about 312.6790491795.
Adding to 30570064 its reverse (46007503), we get a palindrome (76577567).
The spelling of 30570064 in words is "thirty million, five hundred seventy thousand, sixty-four".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.076 sec. • engine limits •