Base | Representation |
---|---|
bin | 11011111101011001… |
… | …011010101000010101 |
3 | 2212111020000000000102 |
4 | 123331121122220111 |
5 | 442440400231401 |
6 | 21442544223445 |
7 | 2111644105004 |
oct | 337531325025 |
9 | 85436000012 |
10 | 30021102101 |
11 | 11806147391 |
12 | 599a00ab85 |
13 | 2aa5873053 |
14 | 164b17cc3b |
15 | baa8e656b |
hex | 6fd65aa15 |
30021102101 has 4 divisors (see below), whose sum is σ = 30529934400. Its totient is φ = 29512269804.
The previous prime is 30021102079. The next prime is 30021102103. The reversal of 30021102101 is 10120112003.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 30021102101 - 222 = 30016907797 is a prime.
It is a super-2 number, since 2×300211021012 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30021102103) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254416061 + ... + 254416178.
It is an arithmetic number, because the mean of its divisors is an integer number (7632483600).
Almost surely, 230021102101 is an apocalyptic number.
It is an amenable number.
30021102101 is a deficient number, since it is larger than the sum of its proper divisors (508832299).
30021102101 is an equidigital number, since it uses as much as digits as its factorization.
30021102101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 508832298.
The product of its (nonzero) digits is 12, while the sum is 11.
Adding to 30021102101 its reverse (10120112003), we get a palindrome (40141214104).
The spelling of 30021102101 in words is "thirty billion, twenty-one million, one hundred two thousand, one hundred one".
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