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52389243937 = 291806525653
BaseRepresentation
bin110000110010101001…
…000110110000100001
312000020002121100011001
4300302221012300201
51324243121301222
640022311152001
73533153140342
oct606251066041
9160202540131
1052389243937
11202443a9418
12a1a1075601
134c2ba60934
14276db900c9
1515694e3e27
hexc32a46c21

52389243937 has 4 divisors (see below), whose sum is σ = 54195769620. Its totient is φ = 50582718256.

The previous prime is 52389243931. The next prime is 52389243943. The reversal of 52389243937 is 73934298325.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (52389243931) and next prime (52389243943).

It can be written as a sum of positive squares in 2 ways, for example, as 31374682641 + 21014561296 = 177129^2 + 144964^2 .

It is not a de Polignac number, because 52389243937 - 215 = 52389211169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52389243931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 903262798 + ... + 903262855.

It is an arithmetic number, because the mean of its divisors is an integer number (13548942405).

Almost surely, 252389243937 is an apocalyptic number.

It is an amenable number.

52389243937 is a deficient number, since it is larger than the sum of its proper divisors (1806525683).

52389243937 is a wasteful number, since it uses less digits than its factorization.

52389243937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806525682.

The product of its digits is 9797760, while the sum is 55.

The spelling of 52389243937 in words is "fifty-two billion, three hundred eighty-nine million, two hundred forty-three thousand, nine hundred thirty-seven".

Divisors: 1 29 1806525653 52389243937