Base | Representation |
---|---|
bin | 11100001001010000… |
… | …010001000101110000 |
3 | 2220000002022121020020 |
4 | 130021100101011300 |
5 | 443342311432240 |
6 | 21514412043440 |
7 | 2116611006444 |
oct | 341120210560 |
9 | 86002277206 |
10 | 30220030320 |
11 | 118a8468077 |
12 | 5a34763580 |
13 | 2b07b4355c |
14 | 1669762824 |
15 | bbd0dd0d0 |
hex | 709411170 |
30220030320 has 40 divisors (see below), whose sum is σ = 93682094736. Its totient is φ = 8058674688.
The previous prime is 30220030307. The next prime is 30220030339. The reversal of 30220030320 is 2303002203.
It is a tau number, because it is divible by the number of its divisors (40).
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 30220030320.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62958157 + ... + 62958636.
Almost surely, 230220030320 is an apocalyptic number.
30220030320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30220030320 is an abundant number, since it is smaller than the sum of its proper divisors (63462064416).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30220030320 is a wasteful number, since it uses less digits than its factorization.
30220030320 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 125916809 (or 125916803 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 15.
Adding to 30220030320 its reverse (2303002203), we get a palindrome (32523032523).
It can be divided in two parts, 302200 and 30320, that added together give a triangular number (332520 = T815).
The spelling of 30220030320 in words is "thirty billion, two hundred twenty million, thirty thousand, three hundred twenty".
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