Base | Representation |
---|---|
bin | 11100001110101000… |
… | …101111001110101110 |
3 | 2220020101020100220100 |
4 | 130032220233032232 |
5 | 444033421100220 |
6 | 21531355331530 |
7 | 2122055364600 |
oct | 341650571656 |
9 | 86211210810 |
10 | 30310331310 |
11 | 11944434596 |
12 | 5a5aa50ba6 |
13 | 2b2076c4ac |
14 | 167774b170 |
15 | bc5ec8d90 |
hex | 70ea2f3ae |
30310331310 has 72 divisors (see below), whose sum is σ = 91673301096. Its totient is φ = 6928074720.
The previous prime is 30310331309. The next prime is 30310331329. The reversal of 30310331310 is 1313301303.
30310331310 is a `hidden beast` number, since 30 + 310 + 3 + 313 + 10 = 666.
It is a super-2 number, since 2×303103313102 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3432136 + ... + 3440955.
It is an arithmetic number, because the mean of its divisors is an integer number (1273240293).
Almost surely, 230310331310 is an apocalyptic number.
30310331310 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30310331310 is an abundant number, since it is smaller than the sum of its proper divisors (61362969786).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30310331310 is a wasteful number, since it uses less digits than its factorization.
30310331310 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6873118 (or 6873108 counting only the distinct ones).
The product of its (nonzero) digits is 243, while the sum is 18.
Adding to 30310331310 its reverse (1313301303), we get a palindrome (31623632613).
The spelling of 30310331310 in words is "thirty billion, three hundred ten million, three hundred thirty-one thousand, three hundred ten".
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