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52385714381 = 7111352333381
BaseRepresentation
bin110000110010011011…
…101001000011001101
312000012211222000111202
4300302123221003031
51324241220330011
640022103355245
73533111140160
oct606233510315
9160184860452
1052385714381
1120242408630
12a19ba52b25
134c2b0c6240
14276d511ad7
15156904823b
hexc326e90cd

52385714381 has 16 divisors (see below), whose sum is σ = 70336065408. Its totient is φ = 37680033600.

The previous prime is 52385714369. The next prime is 52385714393. The reversal of 52385714381 is 18341758325.

It is an interprime number because it is at equal distance from previous prime (52385714369) and next prime (52385714393).

It is not a de Polignac number, because 52385714381 - 234 = 35205845197 is a prime.

It is a super-2 number, since 2×523857143812 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52385714351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26165690 + ... + 26167691.

It is an arithmetic number, because the mean of its divisors is an integer number (4396004088).

Almost surely, 252385714381 is an apocalyptic number.

It is an amenable number.

52385714381 is a deficient number, since it is larger than the sum of its proper divisors (17950351027).

52385714381 is a wasteful number, since it uses less digits than its factorization.

52385714381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52333412.

The product of its digits is 806400, while the sum is 47.

The spelling of 52385714381 in words is "fifty-two billion, three hundred eighty-five million, seven hundred fourteen thousand, three hundred eighty-one".

Divisors: 1 7 11 13 77 91 143 1001 52333381 366333667 575667191 680333953 4029670337 4762337671 7483673483 52385714381