Base | Representation |
---|---|
bin | 11100100001101101… |
… | …010111011010000000 |
3 | 2221001200100001021102 |
4 | 130201231113122000 |
5 | 1000212324432202 |
6 | 22023225513532 |
7 | 2133022231601 |
oct | 344155273200 |
9 | 87050301242 |
10 | 30630311552 |
11 | 11a99015475 |
12 | 5b2a0428a8 |
13 | 2b71b44709 |
14 | 16a8041da8 |
15 | be4132d02 |
hex | 721b57680 |
30630311552 has 64 divisors (see below), whose sum is σ = 61922239560. Its totient is φ = 15090647040.
The previous prime is 30630311539. The next prime is 30630311573. The reversal of 30630311552 is 25511303603.
It can be written as a sum of positive squares in 4 ways, for example, as 20683041856 + 9947269696 = 143816^2 + 99736^2 .
It is a tau number, because it is divible by the number of its divisors (64).
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2496152 + ... + 2508392.
Almost surely, 230630311552 is an apocalyptic number.
30630311552 is a gapful number since it is divisible by the number (32) 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 30630311552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30961119780).
30630311552 is an abundant number, since it is smaller than the sum of its proper divisors (31291928008).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30630311552 is a wasteful number, since it uses less digits than its factorization.
30630311552 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12541 (or 12529 counting only the distinct ones).
The product of its (nonzero) digits is 8100, while the sum is 29.
The spelling of 30630311552 in words is "thirty billion, six hundred thirty million, three hundred eleven thousand, five hundred fifty-two".
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