Base | Representation |
---|---|
bin | 11100010101010111… |
… | …001000000101101100 |
3 | 2220112020112101222110 |
4 | 130111113020011230 |
5 | 444301311430202 |
6 | 21550505444020 |
7 | 2124625360023 |
oct | 342527100554 |
9 | 86466471873 |
10 | 30423155052 |
11 | 119a2094754 |
12 | 5a907a0610 |
13 | 2b3ac52bc4 |
14 | 16887198ba |
15 | bd0d6326c |
hex | 7155c816c |
30423155052 has 48 divisors (see below), whose sum is σ = 76996356192. Its totient is φ = 9311723520.
The previous prime is 30423155003. The next prime is 30423155089. The reversal of 30423155052 is 25055132403.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1810333 + ... + 1827060.
It is an arithmetic number, because the mean of its divisors is an integer number (1604090754).
Almost surely, 230423155052 is an apocalyptic number.
It is an amenable number.
30423155052 is an abundant number, since it is smaller than the sum of its proper divisors (46573201140).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30423155052 is a wasteful number, since it uses less digits than its factorization.
30423155052 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3637458 (or 3637456 counting only the distinct ones).
The product of its (nonzero) digits is 18000, while the sum is 30.
Adding to 30423155052 its reverse (25055132403), we get a palindrome (55478287455).
The spelling of 30423155052 in words is "thirty billion, four hundred twenty-three million, one hundred fifty-five thousand, fifty-two".
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