Base | Representation |
---|---|
bin | 11011111100101111… |
… | …111000001100000011 |
3 | 2212110110111210010221 |
4 | 123330233320030003 |
5 | 442430103304443 |
6 | 21441515003511 |
7 | 2111452413502 |
oct | 337457701403 |
9 | 85413453127 |
10 | 30010213123 |
11 | 117aaa8a330 |
12 | 5996439597 |
13 | 2aa352c977 |
14 | 1649946839 |
15 | ba9994eed |
hex | 6fcbf8303 |
30010213123 has 16 divisors (see below), whose sum is σ = 33094962432. Its totient is φ = 26985420000.
The previous prime is 30010213099. The next prime is 30010213141. The reversal of 30010213123 is 32131201003.
It is not a de Polignac number, because 30010213123 - 229 = 29473342211 is a prime.
It is a super-2 number, since 2×300102131232 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30010213097 and 30010213106.
It is not an unprimeable number, because it can be changed into a prime (30010213153) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1168288 + ... + 1193698.
It is an arithmetic number, because the mean of its divisors is an integer number (2068435152).
Almost surely, 230010213123 is an apocalyptic number.
30010213123 is a deficient number, since it is larger than the sum of its proper divisors (3084749309).
30010213123 is a wasteful number, since it uses less digits than its factorization.
30010213123 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26586.
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 30010213123 its reverse (32131201003), we get a palindrome (62141414126).
The spelling of 30010213123 in words is "thirty billion, ten million, two hundred thirteen thousand, one hundred twenty-three".
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