Base | Representation |
---|---|
bin | 1111101000100… |
… | …01001001101101 |
3 | 100010202201100111 |
4 | 13310101021231 |
5 | 232033023003 |
6 | 21002500021 |
7 | 3151455634 |
oct | 764211155 |
9 | 303681314 |
10 | 131142253 |
11 | 68032130 |
12 | 37b04611 |
13 | 21228688 |
14 | 135ba51b |
15 | b7a6e6d |
hex | 7d1126d |
131142253 has 8 divisors (see below), whose sum is σ = 145410336. Its totient is φ = 117265200.
The previous prime is 131142239. The next prime is 131142269. The reversal of 131142253 is 352241131.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-131142253 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131142293) 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, 97051 + ... + 98392.
It is an arithmetic number, because the mean of its divisors is an integer number (18176292).
Almost surely, 2131142253 is an apocalyptic number.
It is an amenable number.
131142253 is a deficient number, since it is larger than the sum of its proper divisors (14268083).
131142253 is a wasteful number, since it uses less digits than its factorization.
131142253 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 195515.
The product of its digits is 720, while the sum is 22.
The square root of 131142253 is about 11451.7358072914. The cubic root of 131142253 is about 508.0590753730.
Adding to 131142253 its reverse (352241131), we get a palindrome (483383384).
The spelling of 131142253 in words is "one hundred thirty-one million, one hundred forty-two thousand, two hundred fifty-three".
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