Base | Representation |
---|---|
bin | 11100011100011101… |
… | …110011001110101010 |
3 | 2220211112210220000210 |
4 | 130130131303032222 |
5 | 1000022320021010 |
6 | 22010404241550 |
7 | 2130603435663 |
oct | 343435631652 |
9 | 86745726023 |
10 | 30542345130 |
11 | 11a533a2a50 |
12 | 5b046a02b6 |
13 | 2b5985528b |
14 | 169a4a436a |
15 | bdb558b20 |
hex | 71c7733aa |
30542345130 has 32 divisors (see below), whose sum is σ = 79965413568. Its totient is φ = 7404204800.
The previous prime is 30542345117. The next prime is 30542345137. The reversal of 30542345130 is 3154324503.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is not an unprimeable number, because it can be changed into a prime (30542345137) 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, 46275951 + ... + 46276610.
It is an arithmetic number, because the mean of its divisors is an integer number (2498919174).
Almost surely, 230542345130 is an apocalyptic number.
30542345130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30542345130 is an abundant number, since it is smaller than the sum of its proper divisors (49423068438).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30542345130 is a wasteful number, since it uses less digits than its factorization.
30542345130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 92552582.
The product of its (nonzero) digits is 21600, while the sum is 30.
Adding to 30542345130 its reverse (3154324503), we get a palindrome (33696669633).
The spelling of 30542345130 in words is "thirty billion, five hundred forty-two million, three hundred forty-five thousand, one hundred thirty".
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