Base | Representation |
---|---|
bin | 11100011100100110… |
… | …101000110111000000 |
3 | 2220211201011121010000 |
4 | 130130212220313000 |
5 | 1000023413140302 |
6 | 22010530040000 |
7 | 2130632225400 |
oct | 343446506700 |
9 | 86751147100 |
10 | 30544661952 |
11 | 11a54735682 |
12 | 5b05419000 |
13 | 2b5a18698c |
14 | 169a908800 |
15 | bdb86531c |
hex | 71c9a8dc0 |
30544661952 has 210 divisors, whose sum is σ = 105327507912. Its totient is φ = 8726973696.
The previous prime is 30544661929. The next prime is 30544662007. The reversal of 30544661952 is 25916644503.
30544661952 is a `hidden beast` number, since 30 + 544 + 66 + 19 + 5 + 2 = 666.
It is a junction number, because it is equal to n+sod(n) for n = 30544661898 and 30544661907.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 193893 + ... + 314139.
Almost surely, 230544661952 is an apocalyptic number.
30544661952 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 30544661952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52663753956).
30544661952 is an abundant number, since it is smaller than the sum of its proper divisors (74782845960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30544661952 is a wasteful number, since it uses less digits than its factorization.
30544661952 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 120285 (or 120259 counting only the distinct ones).
The product of its (nonzero) digits is 777600, while the sum is 45.
The spelling of 30544661952 in words is "thirty billion, five hundred forty-four million, six hundred sixty-one thousand, nine hundred fifty-two".
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