Base | Representation |
---|---|
bin | 11100010111010000… |
… | …110010111111101100 |
3 | 2220121110112211220222 |
4 | 130113100302333230 |
5 | 444332443101340 |
6 | 21554005230512 |
7 | 2125463440610 |
oct | 342720627754 |
9 | 86543484828 |
10 | 30455050220 |
11 | 11a09099aa1 |
12 | 5a9b402438 |
13 | 2b4473c69a |
14 | 168ca5d340 |
15 | bd3a638b5 |
hex | 717432fec |
30455050220 has 72 divisors (see below), whose sum is σ = 77141673504. Its totient is φ = 9892150272.
The previous prime is 30455050211. The next prime is 30455050229. The reversal of 30455050220 is 2205055403.
It is an interprime number because it is at equal distance from previous prime (30455050211) and next prime (30455050229).
It is a self number, because there is not a number n which added to its sum of digits gives 30455050220.
It is not an unprimeable number, because it can be changed into a prime (30455050229) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 250757 + ... + 351836.
It is an arithmetic number, because the mean of its divisors is an integer number (1071412132).
Almost surely, 230455050220 is an apocalyptic number.
It is an amenable number.
30455050220 is an abundant number, since it is smaller than the sum of its proper divisors (46686623284).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30455050220 is a wasteful number, since it uses less digits than its factorization.
30455050220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 602647 (or 602626 counting only the distinct ones).
The product of its (nonzero) digits is 6000, while the sum is 26.
The spelling of 30455050220 in words is "thirty billion, four hundred fifty-five million, fifty thousand, two hundred twenty".
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