Base | Representation |
---|---|
bin | 1111101000001… |
… | …00010010101111 |
3 | 100010200001002202 |
4 | 13310010102233 |
5 | 232024331313 |
6 | 21001412115 |
7 | 3151146242 |
oct | 764042257 |
9 | 303601082 |
10 | 131089583 |
11 | 67aa65a9 |
12 | 37a9a03b |
13 | 2120a701 |
14 | 135a5259 |
15 | b796558 |
hex | 7d044af |
131089583 has 4 divisors (see below), whose sum is σ = 132441120. Its totient is φ = 129738048.
The previous prime is 131089579. The next prime is 131089633. The reversal of 131089583 is 385980131.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 385980131 = 227 ⋅1700353.
It is a cyclic number.
It is not a de Polignac number, because 131089583 - 22 = 131089579 is a prime.
It is a super-2 number, since 2×1310895832 = 34368957542227778, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131089523) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675623 + ... + 675816.
It is an arithmetic number, because the mean of its divisors is an integer number (33110280).
Almost surely, 2131089583 is an apocalyptic number.
131089583 is a deficient number, since it is larger than the sum of its proper divisors (1351537).
131089583 is an equidigital number, since it uses as much as digits as its factorization.
131089583 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1351536.
The product of its (nonzero) digits is 25920, while the sum is 38.
The square root of 131089583 is about 11449.4359249703. The cubic root of 131089583 is about 507.9910498661.
The spelling of 131089583 in words is "one hundred thirty-one million, eighty-nine thousand, five hundred eighty-three".
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