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52120171 = 436779229
BaseRepresentation
bin1100011011010…
…0101001101011
310122001222102201
43012310221223
5101320321141
65101041031
71202004565
oct306645153
9118058381
1052120171
1127469724
1215556177
13aa4b44c
146cca335
154898031
hex31b4a6b

52120171 has 16 divisors (see below), whose sum is σ = 55052800. Its totient is φ = 49297248.

The previous prime is 52120121. The next prime is 52120183. The reversal of 52120171 is 17102125.

It is a cyclic number.

It is not a de Polignac number, because 52120171 - 29 = 52119659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52120111) 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, 227485 + ... + 227713.

It is an arithmetic number, because the mean of its divisors is an integer number (3440800).

Almost surely, 252120171 is an apocalyptic number.

52120171 is a deficient number, since it is larger than the sum of its proper divisors (2932629).

52120171 is a wasteful number, since it uses less digits than its factorization.

52120171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 52120171 is about 7219.4301021618. The cubic root of 52120171 is about 373.5384198606.

Adding to 52120171 its reverse (17102125), we get a palindrome (69222296).

The spelling of 52120171 in words is "fifty-two million, one hundred twenty thousand, one hundred seventy-one".

Divisors: 1 43 67 79 229 2881 3397 5293 9847 15343 18091 227599 659749 777913 1212097 52120171