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52108143 = 3157317349
BaseRepresentation
bin1100011011000…
…1101101101111
310122001100221020
43012301231233
5101314430033
65100505223
71201624533
oct306615557
9118040836
1052108143
112746068a
121554b213
13aa45b29
146cc5bc3
1548946b3
hex31b1b6f

52108143 has 16 divisors (see below), whose sum is σ = 70341600. Its totient is φ = 34310016.

The previous prime is 52108141. The next prime is 52108159. The reversal of 52108143 is 34180125.

It is not a de Polignac number, because 52108143 - 21 = 52108141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52108141) 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, 149133 + ... + 149481.

It is an arithmetic number, because the mean of its divisors is an integer number (4396350).

Almost surely, 252108143 is an apocalyptic number.

52108143 is a deficient number, since it is larger than the sum of its proper divisors (18233457).

52108143 is a wasteful number, since it uses less digits than its factorization.

52108143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 52108143 is about 7218.5970243531. The cubic root of 52108143 is about 373.5096832845.

Adding to 52108143 its reverse (34180125), we get a palindrome (86288268).

The spelling of 52108143 in words is "fifty-two million, one hundred eight thousand, one hundred forty-three".

Divisors: 1 3 157 317 349 471 951 1047 49769 54793 110633 149307 164379 331899 17369381 52108143