Base | Representation |
---|---|
bin | 10010101011110100… |
… | …00100100111101110 |
3 | 221220002111211121020 |
4 | 21111322010213232 |
5 | 131020443034410 |
6 | 4335215515010 |
7 | 503403654642 |
oct | 112572044756 |
9 | 27802454536 |
10 | 10031221230 |
11 | 42883a9a88 |
12 | 1b3b528a66 |
13 | c3b2cc284 |
14 | 6b236cc22 |
15 | 3da9c8a70 |
hex | 255e849ee |
10031221230 has 32 divisors (see below), whose sum is σ = 24100912800. Its totient is φ = 2672105472.
The previous prime is 10031221199. The next prime is 10031221261. The reversal of 10031221230 is 3212213001.
It is an interprime number because it is at equal distance from previous prime (10031221199) and next prime (10031221261).
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152095 + ... + 207834.
It is an arithmetic number, because the mean of its divisors is an integer number (753153525).
Almost surely, 210031221230 is an apocalyptic number.
10031221230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
10031221230 is an abundant number, since it is smaller than the sum of its proper divisors (14069691570).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
10031221230 is a wasteful number, since it uses less digits than its factorization.
10031221230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 360868.
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 10031221230 its reverse (3212213001), we get a palindrome (13243434231).
The spelling of 10031221230 in words is "ten billion, thirty-one million, two hundred twenty-one thousand, two hundred thirty".
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