Base | Representation |
---|---|
bin | 11100001000001000… |
… | …100000101110110100 |
3 | 2212221202220221100110 |
4 | 130020020200232310 |
5 | 443323003020040 |
6 | 21512500543020 |
7 | 2116262064066 |
oct | 341010405664 |
9 | 85852827313 |
10 | 30201220020 |
11 | 1189888a674 |
12 | 5a2a3b1a70 |
13 | 2b03c887ba |
14 | 1667067736 |
15 | bbb624980 |
hex | 708220bb4 |
30201220020 has 96 divisors (see below), whose sum is σ = 89130222720. Its totient is φ = 7629207040.
The previous prime is 30201219977. The next prime is 30201220033. The reversal of 30201220020 is 2002210203.
It is a super-2 number, since 2×302012200202 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a junction number, because it is equal to n+sod(n) for n = 30201219978 and 30201220005.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71526 + ... + 255965.
It is an arithmetic number, because the mean of its divisors is an integer number (928439820).
Almost surely, 230201220020 is an apocalyptic number.
30201220020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30201220020 is an abundant number, since it is smaller than the sum of its proper divisors (58929002700).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30201220020 is a wasteful number, since it uses less digits than its factorization.
30201220020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 327585 (or 327583 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 12.
Adding to 30201220020 its reverse (2002210203), we get a palindrome (32203430223).
The spelling of 30201220020 in words is "thirty billion, two hundred one million, two hundred twenty thousand, twenty".
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