Base | Representation |
---|---|
bin | 1111101010110… |
… | …10001100100010 |
3 | 100011022220202120 |
4 | 13311122030202 |
5 | 232122111232 |
6 | 21013125110 |
7 | 3154143126 |
oct | 765321442 |
9 | 304286676 |
10 | 131441442 |
11 | 682169a0 |
12 | 38029796 |
13 | 21301902 |
14 | 13657586 |
15 | b81592c |
hex | 7d5a322 |
131441442 has 32 divisors (see below), whose sum is σ = 287267904. Its totient is φ = 39763200.
The previous prime is 131441437. The next prime is 131441447. The reversal of 131441442 is 244144131.
It is an interprime number because it is at equal distance from previous prime (131441437) and next prime (131441447).
It is not an unprimeable number, because it can be changed into a prime (131441447) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48918 + ... + 51534.
It is an arithmetic number, because the mean of its divisors is an integer number (8977122).
Almost surely, 2131441442 is an apocalyptic number.
131441442 is an abundant number, since it is smaller than the sum of its proper divisors (155826462).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131441442 is a wasteful number, since it uses less digits than its factorization.
131441442 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3394.
The product of its digits is 1536, while the sum is 24.
The square root of 131441442 is about 11464.7914067374. The cubic root of 131441442 is about 508.4451452929.
Adding to 131441442 its reverse (244144131), we get a palindrome (375585573).
The spelling of 131441442 in words is "one hundred thirty-one million, four hundred forty-one thousand, four hundred forty-two".
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