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52117653 = 373177829
BaseRepresentation
bin1100011011010…
…0000010010101
310122001211222110
43012310002111
5101320231103
65101021233
71201664340
oct306640225
9118054873
1052117653
1127467845
1215554819
13aa4a263
146cc9457
154897403
hex31b4095

52117653 has 16 divisors (see below), whose sum is σ = 79678080. Its totient is φ = 29683776.

The previous prime is 52117619. The next prime is 52117661. The reversal of 52117653 is 35671125.

It is not a de Polignac number, because 52117653 - 28 = 52117397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52117653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52117253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2743 + ... + 10571.

It is an arithmetic number, because the mean of its divisors is an integer number (4979880).

Almost surely, 252117653 is an apocalyptic number.

It is an amenable number.

52117653 is a deficient number, since it is larger than the sum of its proper divisors (27560427).

52117653 is a wasteful number, since it uses less digits than its factorization.

52117653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8156.

The product of its digits is 6300, while the sum is 30.

The square root of 52117653 is about 7219.2557095590. The cubic root of 52117653 is about 373.5324043720.

Adding to 52117653 its reverse (35671125), we get a palindrome (87788778).

The spelling of 52117653 in words is "fifty-two million, one hundred seventeen thousand, six hundred fifty-three".

Divisors: 1 3 7 21 317 951 2219 6657 7829 23487 54803 164409 2481793 7445379 17372551 52117653