Base | Representation |
---|---|
bin | 1111101000101… |
… | …10011100101100 |
3 | 100010210211010000 |
4 | 13310112130230 |
5 | 232034221243 |
6 | 21003144300 |
7 | 3151606116 |
oct | 764263454 |
9 | 303724100 |
10 | 131163948 |
11 | 68047463 |
12 | 37b15090 |
13 | 21235506 |
14 | 135c43b6 |
15 | b7ad5d3 |
hex | 7d1672c |
131163948 has 30 divisors (see below), whose sum is σ = 342889316. Its totient is φ = 43721208.
The previous prime is 131163947. The next prime is 131163997. The reversal of 131163948 is 849361131.
131163948 is a `hidden beast` number, since 1 + 3 + 11 + 639 + 4 + 8 = 666.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (131163947) by changing a digit.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 202090 + ... + 202737.
Almost surely, 2131163948 is an apocalyptic number.
131163948 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
131163948 is an abundant number, since it is smaller than the sum of its proper divisors (211725368).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131163948 is a wasteful number, since it uses less digits than its factorization.
131163948 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 404843 (or 404832 counting only the distinct ones).
The product of its digits is 15552, while the sum is 36.
The square root of 131163948 is about 11452.6830044318. The cubic root of 131163948 is about 508.0870900762.
The spelling of 131163948 in words is "one hundred thirty-one million, one hundred sixty-three thousand, nine hundred forty-eight".
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