Base | Representation |
---|---|
bin | 11100001001010101… |
… | …001010000000001010 |
3 | 2220000011201201101020 |
4 | 130021111022000022 |
5 | 443343123441020 |
6 | 21514455333310 |
7 | 2116624625241 |
oct | 341125120012 |
9 | 86004651336 |
10 | 30221312010 |
11 | 118a916301a |
12 | 5a35081236 |
13 | 2b081a1a56 |
14 | 16699b7958 |
15 | bbd292c40 |
hex | 70954a00a |
30221312010 has 16 divisors (see below), whose sum is σ = 72531148896. Its totient is φ = 8059016528.
The previous prime is 30221311957. The next prime is 30221312027. The reversal of 30221312010 is 1021312203.
It is a Harshad number since it is a multiple of its sum of digits (15).
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, 503688504 + ... + 503688563.
It is an arithmetic number, because the mean of its divisors is an integer number (4533196806).
Almost surely, 230221312010 is an apocalyptic number.
30221312010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30221312010 is an abundant number, since it is smaller than the sum of its proper divisors (42309836886).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30221312010 is a wasteful number, since it uses less digits than its factorization.
30221312010 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1007377077.
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 30221312010 its reverse (1021312203), we get a palindrome (31242624213).
The spelling of 30221312010 in words is "thirty billion, two hundred twenty-one million, three hundred twelve thousand, ten".
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