Base | Representation |
---|---|
bin | 11100000100110100… |
… | …000101010100011010 |
3 | 2212210220010202102000 |
4 | 130010310011110122 |
5 | 443214224030320 |
6 | 21503151221430 |
7 | 2115014542632 |
oct | 340464052432 |
9 | 85726122360 |
10 | 30145533210 |
11 | 1186a405311 |
12 | 5a13817876 |
13 | 2ac558bb20 |
14 | 165d8cd6c2 |
15 | bb67c4c90 |
hex | 704d0551a |
30145533210 has 128 divisors (see below), whose sum is σ = 86669775360. Its totient is φ = 7412041728.
The previous prime is 30145533193. The next prime is 30145533227. The reversal of 30145533210 is 1233554103.
It is an interprime number because it is at equal distance from previous prime (30145533193) and next prime (30145533227).
It is a Harshad number since it is a multiple of its sum of digits (27).
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3445962 + ... + 3454698.
It is an arithmetic number, because the mean of its divisors is an integer number (677107620).
Almost surely, 230145533210 is an apocalyptic number.
30145533210 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 30145533210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43334887680).
30145533210 is an abundant number, since it is smaller than the sum of its proper divisors (56524242150).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30145533210 is a wasteful number, since it uses less digits than its factorization.
30145533210 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9749 (or 9743 counting only the distinct ones).
The product of its (nonzero) digits is 5400, while the sum is 27.
The spelling of 30145533210 in words is "thirty billion, one hundred forty-five million, five hundred thirty-three thousand, two hundred ten".
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