Base | Representation |
---|---|
bin | 101100110110011100… |
… | …000000000000100100 |
3 | 11121022012200100001100 |
4 | 230312130000000210 |
5 | 1242111413344423 |
6 | 34042400000100 |
7 | 3323253551361 |
oct | 546634000044 |
9 | 147265610040 |
10 | 48157949988 |
11 | 194729a8675 |
12 | 9400000030 |
13 | 4706248cc5 |
14 | 248bc2d468 |
15 | 13bccd2343 |
hex | b36700024 |
48157949988 has 72 divisors (see below), whose sum is σ = 122319445248. Its totient is φ = 15975393408.
The previous prime is 48157949981. The next prime is 48157949989. The reversal of 48157949988 is 88994975184.
48157949988 is a `hidden beast` number, since 4 + 8 + 1 + 57 + 9 + 499 + 88 = 666.
It is not an unprimeable number, because it can be changed into a prime (48157949981) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12562120 + ... + 12565952.
It is an arithmetic number, because the mean of its divisors is an integer number (1698881184).
Almost surely, 248157949988 is an apocalyptic number.
It is an amenable number.
48157949988 is an abundant number, since it is smaller than the sum of its proper divisors (74161495260).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
48157949988 is a wasteful number, since it uses less digits than its factorization.
48157949988 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5433 (or 5428 counting only the distinct ones).
The product of its digits is 209018880, while the sum is 72.
The spelling of 48157949988 in words is "forty-eight billion, one hundred fifty-seven million, nine hundred forty-nine thousand, nine hundred eighty-eight".
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