Base | Representation |
---|---|
bin | 1111101000011… |
… | …10101111111111 |
3 | 100010202012212010 |
4 | 13310032233333 |
5 | 232032214130 |
6 | 21002342303 |
7 | 3151415151 |
oct | 764165777 |
9 | 303665763 |
10 | 131132415 |
11 | 680257a7 |
12 | 37aba993 |
13 | 2122405b |
14 | 135b6ad1 |
15 | b7a40b0 |
hex | 7d0ebff |
131132415 has 8 divisors (see below), whose sum is σ = 209811888. Its totient is φ = 69937280.
The previous prime is 131132411. The next prime is 131132423. The reversal of 131132415 is 514231131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 131132415 - 22 = 131132411 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 131132391 and 131132400.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131132411) 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, 4371066 + ... + 4371095.
It is an arithmetic number, because the mean of its divisors is an integer number (26226486).
Almost surely, 2131132415 is an apocalyptic number.
131132415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
131132415 is a deficient number, since it is larger than the sum of its proper divisors (78679473).
131132415 is an equidigital number, since it uses as much as digits as its factorization.
131132415 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8742169.
The product of its digits is 360, while the sum is 21.
The square root of 131132415 is about 11451.3062573664. The cubic root of 131132415 is about 508.0463705682.
Adding to 131132415 its reverse (514231131), we get a palindrome (645363546).
The spelling of 131132415 in words is "one hundred thirty-one million, one hundred thirty-two thousand, four hundred fifteen".
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