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52742741 is a prime number
BaseRepresentation
bin1100100100110…
…0101001010101
310200020121102212
43021030221111
5102000231431
65122243205
71210206632
oct311145125
9120217385
1052742741
1127854447
12157b6505
13ac0892c
14700d189
15496c72b
hex324ca55

52742741 has 2 divisors, whose sum is σ = 52742742. Its totient is φ = 52742740.

The previous prime is 52742731. The next prime is 52742743. The reversal of 52742741 is 14724725.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51984100 + 758641 = 7210^2 + 871^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52742741 is a prime.

Together with 52742743, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 52742698 and 52742707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52742743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26371370 + 26371371.

It is an arithmetic number, because the mean of its divisors is an integer number (26371371).

Almost surely, 252742741 is an apocalyptic number.

It is an amenable number.

52742741 is a deficient number, since it is larger than the sum of its proper divisors (1).

52742741 is an equidigital number, since it uses as much as digits as its factorization.

52742741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15680, while the sum is 32.

The square root of 52742741 is about 7262.4197758048. The cubic root of 52742741 is about 375.0198294699.

The spelling of 52742741 in words is "fifty-two million, seven hundred forty-two thousand, seven hundred forty-one".