Base | Representation |
---|---|
bin | 11011111100110111… |
… | …001010001110100111 |
3 | 2212110121002202122221 |
4 | 123330313022032213 |
5 | 442431100401043 |
6 | 21442023533211 |
7 | 2111504554012 |
oct | 337467121647 |
9 | 85417082587 |
10 | 30012122023 |
11 | 11801073534 |
12 | 5996bba207 |
13 | 2aa3a4a7b0 |
14 | 1649cc2379 |
15 | ba9c208ed |
hex | 6fcdca3a7 |
30012122023 has 16 divisors (see below), whose sum is σ = 32654464416. Its totient is φ = 27417686400.
The previous prime is 30012121991. The next prime is 30012122117. The reversal of 30012122023 is 32022121003.
It is not a de Polignac number, because 30012122023 - 25 = 30012121991 is a prime.
It is a super-2 number, since 2×300121220232 (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 = 30012121988 and 30012122006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30012129023) 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, 5739136 + ... + 5744362.
It is an arithmetic number, because the mean of its divisors is an integer number (2040904026).
Almost surely, 230012122023 is an apocalyptic number.
30012122023 is a deficient number, since it is larger than the sum of its proper divisors (2642342393).
30012122023 is a wasteful number, since it uses less digits than its factorization.
30012122023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9714.
The product of its (nonzero) digits is 144, while the sum is 16.
Adding to 30012122023 its reverse (32022121003), we get a palindrome (62034243026).
The spelling of 30012122023 in words is "thirty billion, twelve million, one hundred twenty-two thousand, twenty-three".
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