Base | Representation |
---|---|
bin | 1111101110111… |
… | …00110000010000 |
3 | 100012100002022201 |
4 | 13313130300100 |
5 | 232241214313 |
6 | 21032412544 |
7 | 3161531200 |
oct | 767346020 |
9 | 305302281 |
10 | 131976208 |
11 | 68551751 |
12 | 38247154 |
13 | 2145b140 |
14 | 13756400 |
15 | b8be0dd |
hex | 7ddcc10 |
131976208 has 120 divisors (see below), whose sum is σ = 334853568. Its totient is φ = 49851648.
The previous prime is 131976199. The next prime is 131976209. The reversal of 131976208 is 802679131.
It is not an unprimeable number, because it can be changed into a prime (131976209) 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, 234135 + ... + 234697.
Almost surely, 2131976208 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 131976208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167426784).
131976208 is an abundant number, since it is smaller than the sum of its proper divisors (202877360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131976208 is a wasteful number, since it uses less digits than its factorization.
131976208 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 621 (or 608 counting only the distinct ones).
The product of its (nonzero) digits is 18144, while the sum is 37.
The square root of 131976208 is about 11488.0898325178. The cubic root of 131976208 is about 509.1337441230.
The spelling of 131976208 in words is "one hundred thirty-one million, nine hundred seventy-six thousand, two hundred eight".
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