Base | Representation |
---|---|
bin | 11011111100111011… |
… | …110001011001000010 |
3 | 2212110200101012002020 |
4 | 123330323301121002 |
5 | 442431403043020 |
6 | 21442105502310 |
7 | 2111521050525 |
oct | 337473613102 |
9 | 85420335066 |
10 | 30013331010 |
11 | 118018198a3 |
12 | 59974a1996 |
13 | 2aa4081b80 |
14 | 164a118bbc |
15 | ba9dadc40 |
hex | 6fcef1642 |
30013331010 has 64 divisors (see below), whose sum is σ = 77768716032. Its totient is φ = 7369249536.
The previous prime is 30013331009. The next prime is 30013331011. The reversal of 30013331010 is 1013331003.
It is an interprime number because it is at equal distance from previous prime (30013331009) and next prime (30013331011).
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (30013331011) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57907 + ... + 251753.
It is an arithmetic number, because the mean of its divisors is an integer number (1215136188).
Almost surely, 230013331010 is an apocalyptic number.
30013331010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 30013331010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38884358016).
30013331010 is an abundant number, since it is smaller than the sum of its proper divisors (47755385022).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30013331010 is a wasteful number, since it uses less digits than its factorization.
30013331010 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 194267.
The product of its (nonzero) digits is 81, while the sum is 15.
Adding to 30013331010 its reverse (1013331003), we get a palindrome (31026662013).
The spelling of 30013331010 in words is "thirty billion, thirteen million, three hundred thirty-one thousand, ten".
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