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33481141 = 251133391
BaseRepresentation
bin111111110111…
…0000110110101
32100000000111021
41333232012311
532032344031
63153341141
7554404441
oct177560665
970000437
1033481141
1117998971
12b2677b1
136c23635
144637821
152e15511
hex1fee1b5

33481141 has 4 divisors (see below), whose sum is σ = 33614784. Its totient is φ = 33347500.

The previous prime is 33481117. The next prime is 33481159. The reversal of 33481141 is 14118433.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14118433 = 72016919.

It is a cyclic number.

It is not a de Polignac number, because 33481141 - 27 = 33481013 is a prime.

It is a super-2 number, since 2×334811412 = 2241973605323762, 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 (33484141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66445 + ... + 66946.

It is an arithmetic number, because the mean of its divisors is an integer number (8403696).

Almost surely, 233481141 is an apocalyptic number.

It is an amenable number.

33481141 is a deficient number, since it is larger than the sum of its proper divisors (133643).

33481141 is a wasteful number, since it uses less digits than its factorization.

33481141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133642.

The product of its digits is 1152, while the sum is 25.

The square root of 33481141 is about 5786.2890525794. The cubic root of 33481141 is about 322.3047826010.

Adding to 33481141 its reverse (14118433), we get a palindrome (47599574).

It can be divided in two parts, 3348 and 1141, that added together give a square (4489 = 672).

The spelling of 33481141 in words is "thirty-three million, four hundred eighty-one thousand, one hundred forty-one".

Divisors: 1 251 133391 33481141