Base | Representation |
---|---|
bin | 111010010011… |
… | …1111011000110 |
3 | 2010112020012211 |
4 | 1310213323012 |
5 | 30311302410 |
6 | 3011134034 |
7 | 520600603 |
oct | 164477306 |
9 | 63466184 |
10 | 30572230 |
11 | 16291407 |
12 | a2a431a |
13 | 64455a0 |
14 | 40bb6aa |
15 | 2a3d68a |
hex | 1d27ec6 |
30572230 has 16 divisors (see below), whose sum is σ = 59263344. Its totient is φ = 11288160.
The previous prime is 30572203. The next prime is 30572237. The reversal of 30572230 is 3227503.
It is a happy number.
It is a super-2 number, since 2×305722302 = 1869322494345800, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30572237) 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, 117456 + ... + 117715.
It is an arithmetic number, because the mean of its divisors is an integer number (3703959).
Almost surely, 230572230 is an apocalyptic number.
30572230 is a deficient number, since it is larger than the sum of its proper divisors (28691114).
30572230 is a wasteful number, since it uses less digits than its factorization.
30572230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 235191.
The product of its (nonzero) digits is 1260, while the sum is 22.
The square root of 30572230 is about 5529.2160384633. The cubic root of 30572230 is about 312.6864338203.
Adding to 30572230 its reverse (3227503), we get a palindrome (33799733).
The spelling of 30572230 in words is "thirty million, five hundred seventy-two thousand, two hundred thirty".
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