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33135141 = 3134718077
BaseRepresentation
bin111111001100…
…1101000100101
32022100102212110
41332121220211
531440311031
63142111233
7551433624
oct176315045
968312773
1033135141
1117781a16
12b11b519
136b31cc0
1445876bb
152d97c46
hex1f99a25

33135141 has 16 divisors (see below), whose sum is σ = 48593664. Its totient is φ = 19955904.

The previous prime is 33135133. The next prime is 33135143. The reversal of 33135141 is 14153133.

It is not a de Polignac number, because 33135141 - 23 = 33135133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33135143) 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, 7206 + ... + 10871.

It is an arithmetic number, because the mean of its divisors is an integer number (3037104).

Almost surely, 233135141 is an apocalyptic number.

It is an amenable number.

33135141 is a deficient number, since it is larger than the sum of its proper divisors (15458523).

33135141 is a wasteful number, since it uses less digits than its factorization.

33135141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18140.

The product of its digits is 540, while the sum is 21.

The square root of 33135141 is about 5756.3131429762. The cubic root of 33135141 is about 321.1906845424.

Adding to 33135141 its reverse (14153133), we get a palindrome (47288274).

The spelling of 33135141 in words is "thirty-three million, one hundred thirty-five thousand, one hundred forty-one".

Divisors: 1 3 13 39 47 141 611 1833 18077 54231 235001 705003 849619 2548857 11045047 33135141