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52716861 = 327182499
BaseRepresentation
bin1100100100011…
…0010100111101
310200012021221100
43021012110331
5101443414421
65121523313
71210041321
oct311062475
9120167840
1052716861
1127836a5a
12157a3539
13abc9c12
147003981
154964c26
hex324653d

52716861 has 12 divisors (see below), whose sum is σ = 77220000. Its totient is φ = 34649160.

The previous prime is 52716841. The next prime is 52716863. The reversal of 52716861 is 16861725.

52716861 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 52716861 - 211 = 52714813 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52716863) 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, 40611 + ... + 41888.

It is an arithmetic number, because the mean of its divisors is an integer number (6435000).

Almost surely, 252716861 is an apocalyptic number.

It is an amenable number.

52716861 is a deficient number, since it is larger than the sum of its proper divisors (24503139).

52716861 is a wasteful number, since it uses less digits than its factorization.

52716861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82576 (or 82573 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 52716861 is about 7260.6377819032. The cubic root of 52716861 is about 374.9584807366.

The spelling of 52716861 in words is "fifty-two million, seven hundred sixteen thousand, eight hundred sixty-one".

Divisors: 1 3 9 71 213 639 82499 247497 742491 5857429 17572287 52716861