Base | Representation |
---|---|
bin | 11100010101001100… |
… | …101010010000111010 |
3 | 2220112001101000110120 |
4 | 130111030222100322 |
5 | 444300111131300 |
6 | 21550330554110 |
7 | 2124563142132 |
oct | 342514522072 |
9 | 86461330416 |
10 | 30420411450 |
11 | 119a0590410 |
12 | 5a8b898936 |
13 | 2b3a502180 |
14 | 1688203ac2 |
15 | bd09c03a0 |
hex | 71532a43a |
30420411450 has 96 divisors (see below), whose sum is σ = 88631952192. Its totient is φ = 6807360000.
The previous prime is 30420411449. The next prime is 30420411457. The reversal of 30420411450 is 5411402403.
It is a super-2 number, since 2×304204114502 (a number of 22 digits) contains 22 as substring.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 30420411450.
It is not an unprimeable number, because it can be changed into a prime (30420411457) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 687651 + ... + 730550.
It is an arithmetic number, because the mean of its divisors is an integer number (923249502).
Almost surely, 230420411450 is an apocalyptic number.
30420411450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30420411450 is an abundant number, since it is smaller than the sum of its proper divisors (58211540742).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30420411450 is a wasteful number, since it uses less digits than its factorization.
30420411450 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1418240 (or 1418235 counting only the distinct ones).
The product of its (nonzero) digits is 1920, while the sum is 24.
Adding to 30420411450 its reverse (5411402403), we get a palindrome (35831813853).
The spelling of 30420411450 in words is "thirty billion, four hundred twenty million, four hundred eleven thousand, four hundred fifty".
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