Base | Representation |
---|---|
bin | 1111101011110… |
… | …01010110010001 |
3 | 100011120101210110 |
4 | 13311321112101 |
5 | 232140202131 |
6 | 21015551533 |
7 | 3155214132 |
oct | 765712621 |
9 | 304511713 |
10 | 131569041 |
11 | 682a384a |
12 | 3808b5a9 |
13 | 21347a06 |
14 | 1368bc89 |
15 | b83d646 |
hex | 7d79591 |
131569041 has 8 divisors (see below), whose sum is σ = 179704224. Its totient is φ = 85573280.
The previous prime is 131569037. The next prime is 131569043. The reversal of 131569041 is 140965131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 131569041 - 22 = 131569037 is a prime.
It is not an unprimeable number, because it can be changed into a prime (131569043) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 534711 + ... + 534956.
It is an arithmetic number, because the mean of its divisors is an integer number (22463028).
Almost surely, 2131569041 is an apocalyptic number.
It is an amenable number.
131569041 is a deficient number, since it is larger than the sum of its proper divisors (48135183).
131569041 is a wasteful number, since it uses less digits than its factorization.
131569041 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1069711.
The product of its (nonzero) digits is 3240, while the sum is 30.
The square root of 131569041 is about 11470.3548768118. The cubic root of 131569041 is about 508.6096193200.
The spelling of 131569041 in words is "one hundred thirty-one million, five hundred sixty-nine thousand, forty-one".
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