Base | Representation |
---|---|
bin | 11100011101001011… |
… | …101111100010110100 |
3 | 2220212101110202122110 |
4 | 130131023233202310 |
5 | 1000033410414120 |
6 | 22011514331020 |
7 | 2131111006215 |
oct | 343513574264 |
9 | 86771422573 |
10 | 30554388660 |
11 | 11a5a179484 |
12 | 5b08729a70 |
13 | 2b5c1b1023 |
14 | 169bd1b40c |
15 | bdc6372e0 |
hex | 71d2ef8b4 |
30554388660 has 96 divisors (see below), whose sum is σ = 91386755712. Its totient is φ = 7600660480.
The previous prime is 30554388659. The next prime is 30554388679. The reversal of 30554388660 is 6688345503.
It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17286 + ... + 247805.
It is an arithmetic number, because the mean of its divisors is an integer number (951945372).
Almost surely, 230554388660 is an apocalyptic number.
30554388660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30554388660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45693377856).
30554388660 is an abundant number, since it is smaller than the sum of its proper divisors (60832367052).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30554388660 is a wasteful number, since it uses less digits than its factorization.
30554388660 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 265233 (or 265231 counting only the distinct ones).
The product of its (nonzero) digits is 2073600, while the sum is 48.
The spelling of 30554388660 in words is "thirty billion, five hundred fifty-four million, three hundred eighty-eight thousand, six hundred sixty".
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