Base | Representation |
---|---|
bin | 111001011010… |
… | …0111000010010 |
3 | 2002122021211020 |
4 | 1302310320102 |
5 | 30201213020 |
6 | 2553100310 |
7 | 513566022 |
oct | 162647022 |
9 | 62567736 |
10 | 30101010 |
11 | 15a9a375 |
12 | a0b7696 |
13 | 630bc64 |
14 | 3dd7a82 |
15 | 2998c40 |
hex | 1cb4e12 |
30101010 has 16 divisors (see below), whose sum is σ = 72242496. Its totient is φ = 8026928.
The previous prime is 30101003. The next prime is 30101021. The reversal of 30101010 is 1010103.
It is a Harshad number since it is a multiple of its sum of digits (6).
It is an alternating number because its digits alternate between odd and even.
30101010 is a modest number, since divided by 101010 gives 30 as remainder.
It is a self number, because there is not a number n which added to its sum of digits gives 30101010.
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, 501654 + ... + 501713.
It is an arithmetic number, because the mean of its divisors is an integer number (4515156).
Almost surely, 230101010 is an apocalyptic number.
30101010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30101010 is an abundant number, since it is smaller than the sum of its proper divisors (42141486).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30101010 is a wasteful number, since it uses less digits than its factorization.
30101010 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1003377.
The product of its (nonzero) digits is 3, while the sum is 6.
The square root of 30101010 is about 5486.4387356463. The cubic root of 30101010 is about 311.0715949905.
Adding to 30101010 its reverse (1010103), we get a palindrome (31111113).
The spelling of 30101010 in words is "thirty million, one hundred one thousand, ten".
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