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31134041 = 40177641
BaseRepresentation
bin111011011000…
…1000101011001
32011120202212122
41312301011121
530432242131
63031151025
7525430541
oct166610531
964522778
1031134041
1116635514
12a515475
1365b1213
1441c6321
152aeed7b
hex1db1159

31134041 has 4 divisors (see below), whose sum is σ = 31212084. Its totient is φ = 31056000.

The previous prime is 31134017. The next prime is 31134043. The reversal of 31134041 is 14043113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14043113 = 72006159.

It can be written as a sum of positive squares in 2 ways, for example, as 17884441 + 13249600 = 4229^2 + 3640^2 .

It is a cyclic number.

It is not a de Polignac number, because 31134041 - 210 = 31133017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31134043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38420 + ... + 39221.

It is an arithmetic number, because the mean of its divisors is an integer number (7803021).

Almost surely, 231134041 is an apocalyptic number.

It is an amenable number.

31134041 is a deficient number, since it is larger than the sum of its proper divisors (78043).

31134041 is an equidigital number, since it uses as much as digits as its factorization.

31134041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78042.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 31134041 is about 5579.7886160678. The cubic root of 31134041 is about 314.5901817591.

Adding to 31134041 its reverse (14043113), we get a palindrome (45177154).

The spelling of 31134041 in words is "thirty-one million, one hundred thirty-four thousand, forty-one".

Divisors: 1 401 77641 31134041