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51543141 = 3132101663
BaseRepresentation
bin1100010010011…
…1110001100101
310120222122220020
43010213301211
5101143340031
65040425353
71164052356
oct304476145
9116878806
1051543141
1127105141
1215318259
13a8a8900
146bb9d2d
1547d2096
hex3127c65

51543141 has 12 divisors (see below), whose sum is σ = 74418048. Its totient is φ = 31718544.

The previous prime is 51543131. The next prime is 51543203. The reversal of 51543141 is 14134515.

It is a happy number.

51543141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51543141 - 27 = 51543013 is a prime.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51543131) 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 11 ways as a sum of consecutive naturals, for example, 50325 + ... + 51338.

It is an arithmetic number, because the mean of its divisors is an integer number (6201504).

Almost surely, 251543141 is an apocalyptic number.

It is an amenable number.

51543141 is a deficient number, since it is larger than the sum of its proper divisors (22874907).

51543141 is a wasteful number, since it uses less digits than its factorization.

51543141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101692 (or 101679 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 51543141 is about 7179.3551938875. The cubic root of 51543141 is about 372.1548017423.

Adding to 51543141 its reverse (14134515), we get a palindrome (65677656).

The spelling of 51543141 in words is "fifty-one million, five hundred forty-three thousand, one hundred forty-one".

Divisors: 1 3 13 39 169 507 101663 304989 1321619 3964857 17181047 51543141