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53745839 = 752114737
BaseRepresentation
bin1100110100000…
…1100010101111
310202010120102122
43031001202233
5102224331324
65155543155
71221555260
oct315014257
9122116378
1053745839
112837a054
1215bbaabb
13b19a394
1471d0967
154ab9a5e
hex33418af

53745839 has 8 divisors (see below), whose sum is σ = 61545888. Its totient is φ = 45976320.

The previous prime is 53745817. The next prime is 53745893. The reversal of 53745839 is 93854735.

53745839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53745839 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53745839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53742839) 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 7 ways as a sum of consecutive naturals, for example, 3722 + ... + 11015.

It is an arithmetic number, because the mean of its divisors is an integer number (7693236).

Almost surely, 253745839 is an apocalyptic number.

53745839 is a deficient number, since it is larger than the sum of its proper divisors (7800049).

53745839 is a wasteful number, since it uses less digits than its factorization.

53745839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15265.

The product of its digits is 453600, while the sum is 44.

The square root of 53745839 is about 7331.1553659706. The cubic root of 53745839 is about 377.3823769912.

The spelling of 53745839 in words is "fifty-three million, seven hundred forty-five thousand, eight hundred thirty-nine".

Divisors: 1 7 521 3647 14737 103159 7677977 53745839