Base | Representation |
---|---|
bin | 111001100110… |
… | …1010110110110 |
3 | 2002211101100120 |
4 | 1303031112312 |
5 | 30212420040 |
6 | 2555152410 |
7 | 514464231 |
oct | 163152666 |
9 | 62741316 |
10 | 30201270 |
11 | 16058730 |
12 | a145706 |
13 | 6345798 |
14 | 4022418 |
15 | 29b87d0 |
hex | 1ccd5b6 |
30201270 has 64 divisors (see below), whose sum is σ = 80248320. Its totient is φ = 7212800.
The previous prime is 30201263. The next prime is 30201271. The reversal of 30201270 is 7210203.
It is a super-2 number, since 2×302012702 = 1824233419225800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30201271) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22786 + ... + 24074.
It is an arithmetic number, because the mean of its divisors is an integer number (1253880).
Almost surely, 230201270 is an apocalyptic number.
30201270 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 30201270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40124160).
30201270 is an abundant number, since it is smaller than the sum of its proper divisors (50047050).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30201270 is a wasteful number, since it uses less digits than its factorization.
30201270 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1381.
The product of its (nonzero) digits is 84, while the sum is 15.
The square root of 30201270 is about 5495.5682144797. The cubic root of 30201270 is about 311.4165831394.
Adding to 30201270 its reverse (7210203), we get a palindrome (37411473).
The spelling of 30201270 in words is "thirty million, two hundred one thousand, two hundred seventy".
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