Base | Representation |
---|---|
bin | 11100010111000010… |
… | …010011100100000100 |
3 | 2220121012101212000011 |
4 | 130113002103210010 |
5 | 444331010021320 |
6 | 21553352000004 |
7 | 2125416236530 |
oct | 342702234404 |
9 | 86535355004 |
10 | 30451251460 |
11 | 11a06a34a23 |
12 | 5a9a090004 |
13 | 2b43a0c5b6 |
14 | 168c350bc0 |
15 | bd356305a |
hex | 717093904 |
30451251460 has 48 divisors (see below), whose sum is σ = 73096047360. Its totient is φ = 10438565760.
The previous prime is 30451251451. The next prime is 30451251461. The reversal of 30451251460 is 6415215403.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (30451251461) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 934726 + ... + 966754.
It is an arithmetic number, because the mean of its divisors is an integer number (1522834320).
Almost surely, 230451251460 is an apocalyptic number.
It is an amenable number.
30451251460 is an abundant number, since it is smaller than the sum of its proper divisors (42644795900).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30451251460 is a wasteful number, since it uses less digits than its factorization.
30451251460 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38836 (or 38834 counting only the distinct ones).
The product of its (nonzero) digits is 14400, while the sum is 31.
Adding to 30451251460 its reverse (6415215403), we get a palindrome (36866466863).
The spelling of 30451251460 in words is "thirty billion, four hundred fifty-one million, two hundred fifty-one thousand, four hundred sixty".
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