Base | Representation |
---|---|
bin | 1111101001001… |
… | …10000100000100 |
3 | 100010221001211220 |
4 | 13310212010010 |
5 | 232043243113 |
6 | 21004400340 |
7 | 3152263440 |
oct | 764460404 |
9 | 303831756 |
10 | 131227908 |
11 | 68090519 |
12 | 37b460b0 |
13 | 21258666 |
14 | 135dd820 |
15 | b7c2523 |
hex | 7d26104 |
131227908 has 48 divisors (see below), whose sum is σ = 368363520. Its totient is φ = 35519904.
The previous prime is 131227891. The next prime is 131227933. The reversal of 131227908 is 809722131.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39516 + ... + 42707.
It is an arithmetic number, because the mean of its divisors is an integer number (7674240).
Almost surely, 2131227908 is an apocalyptic number.
It is an amenable number.
131227908 is an abundant number, since it is smaller than the sum of its proper divisors (237135612).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131227908 is a wasteful number, since it uses less digits than its factorization.
131227908 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 82256 (or 82254 counting only the distinct ones).
The product of its (nonzero) digits is 6048, while the sum is 33.
The square root of 131227908 is about 11455.4750228875. The cubic root of 131227908 is about 508.1696635017.
The spelling of 131227908 in words is "one hundred thirty-one million, two hundred twenty-seven thousand, nine hundred eight".
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