Base | Representation |
---|---|
bin | 11100010100000100… |
… | …100011111110011000 |
3 | 2220110201210210100202 |
4 | 130110010203332120 |
5 | 444230241330240 |
6 | 21544413521332 |
7 | 2124243403535 |
oct | 342404437630 |
9 | 86421723322 |
10 | 30401511320 |
11 | 11990951474 |
12 | 5a854a3248 |
13 | 2b3661556b |
14 | 16858c3d8c |
15 | bcdeda315 |
hex | 714123f98 |
30401511320 has 64 divisors (see below), whose sum is σ = 71409816000. Its totient is φ = 11626610688.
The previous prime is 30401511311. The next prime is 30401511323. The reversal of 30401511320 is 2311510403.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a junction number, because it is equal to n+sod(n) for n = 30401511292 and 30401511301.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30401511323) 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, 2467736 + ... + 2480024.
It is an arithmetic number, because the mean of its divisors is an integer number (1115778375).
Almost surely, 230401511320 is an apocalyptic number.
It is an amenable number.
30401511320 is an abundant number, since it is smaller than the sum of its proper divisors (41008304680).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30401511320 is a wasteful number, since it uses less digits than its factorization.
30401511320 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15012 (or 15008 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 20.
The spelling of 30401511320 in words is "thirty billion, four hundred one million, five hundred eleven thousand, three hundred twenty".
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