Base | Representation |
---|---|
bin | 11100001001111000… |
… | …101101011111101111 |
3 | 2220000211021020121000 |
4 | 130021320231133233 |
5 | 443403020214211 |
6 | 21515431211343 |
7 | 2120100064416 |
oct | 341170553757 |
9 | 86024236530 |
10 | 30230632431 |
11 | 1190344964a |
12 | 5a38216b53 |
13 | 2b0a0b61ac |
14 | 166ad2247d |
15 | bbded4656 |
hex | 709e2d7ef |
30230632431 has 8 divisors (see below), whose sum is σ = 44786122160. Its totient is φ = 20153754936.
The previous prime is 30230632373. The next prime is 30230632441. The reversal of 30230632431 is 13423603203.
It is a happy number.
30230632431 is a `hidden beast` number, since 3 + 0 + 2 + 306 + 324 + 31 = 666.
It is not a de Polignac number, because 30230632431 - 27 = 30230632303 is a prime.
It is a super-2 number, since 2×302306324312 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1119653053 = 30230632431 / (3 + 0 + 2 + 3 + 0 + 6 + 3 + 2 + 4 + 3 + 1).
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30230632395 and 30230632404.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30230632441) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 559826500 + ... + 559826553.
It is an arithmetic number, because the mean of its divisors is an integer number (5598265270).
Almost surely, 230230632431 is an apocalyptic number.
30230632431 is a deficient number, since it is larger than the sum of its proper divisors (14555489729).
30230632431 is a wasteful number, since it uses less digits than its factorization.
30230632431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1119653062 (or 1119653056 counting only the distinct ones).
The product of its (nonzero) digits is 7776, while the sum is 27.
The spelling of 30230632431 in words is "thirty billion, two hundred thirty million, six hundred thirty-two thousand, four hundred thirty-one".
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