Base | Representation |
---|---|
bin | 11100001000101010… |
… | …110110000001011000 |
3 | 2212222101212012011111 |
4 | 130020222312001120 |
5 | 443332304020440 |
6 | 21513421510104 |
7 | 2116431430333 |
oct | 341052660130 |
9 | 85871765144 |
10 | 30210220120 |
11 | 118a2977573 |
12 | 5a31412334 |
13 | 2b05aba1c2 |
14 | 166832b61a |
15 | bbc3014ea |
hex | 708ab6058 |
30210220120 has 16 divisors (see below), whose sum is σ = 67972995360. Its totient is φ = 12084088032.
The previous prime is 30210220009. The next prime is 30210220121. The reversal of 30210220120 is 2102201203.
It is a self number, because there is not a number n which added to its sum of digits gives 30210220120.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30210220121) 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, 377627712 + ... + 377627791.
It is an arithmetic number, because the mean of its divisors is an integer number (4248312210).
Almost surely, 230210220120 is an apocalyptic number.
It is an amenable number.
30210220120 is an abundant number, since it is smaller than the sum of its proper divisors (37762775240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30210220120 is a wasteful number, since it uses less digits than its factorization.
30210220120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 755255514 (or 755255510 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 13.
Adding to 30210220120 its reverse (2102201203), we get a palindrome (32312421323).
The spelling of 30210220120 in words is "thirty billion, two hundred ten million, two hundred twenty thousand, one hundred twenty".
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