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53086648 = 2317390343
BaseRepresentation
bin1100101010000…
…0100110111000
310200220002012011
43022200212320
5102042233043
65133455304
71213141366
oct312404670
9120802164
1053086648
1127a6986a
1215941534
13acc9324
14709c636
1549d959d
hex32a09b8

53086648 has 16 divisors (see below), whose sum is σ = 105392880. Its totient is φ = 24981888.

The previous prime is 53086643. The next prime is 53086651. The reversal of 53086648 is 84668035.

It is a self number, because there is not a number n which added to its sum of digits gives 53086648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53086643) 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 3 ways as a sum of consecutive naturals, for example, 195036 + ... + 195307.

It is an arithmetic number, because the mean of its divisors is an integer number (6587055).

Almost surely, 253086648 is an apocalyptic number.

It is an amenable number.

53086648 is a deficient number, since it is larger than the sum of its proper divisors (52306232).

53086648 is a wasteful number, since it uses less digits than its factorization.

53086648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390366 (or 390362 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 53086648 is about 7286.0584680608. The cubic root of 53086648 is about 375.8331650068.

It can be divided in two parts, 530 and 86648, that added together give a palindrome (87178).

The spelling of 53086648 in words is "fifty-three million, eighty-six thousand, six hundred forty-eight".

Divisors: 1 2 4 8 17 34 68 136 390343 780686 1561372 3122744 6635831 13271662 26543324 53086648