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52742178837 = 332563376207
BaseRepresentation
bin110001000111101011…
…011100100000010101
312001010200201021211000
4301013223130200111
51331003444210322
640121315533513
73545000060145
oct610753344025
9161120637730
1052742178837
1120405648657
12a27b2ba299
134c86c0395a
1427a49c2925
15158a4ac3ac
hexc47adc815

52742178837 has 16 divisors (see below), whose sum is σ = 78140634880. Its totient is φ = 35159619456.

The previous prime is 52742178829. The next prime is 52742178847. The reversal of 52742178837 is 73887124725.

52742178837 is a `hidden beast` number, since 527 + 4 + 2 + 1 + 7 + 88 + 37 = 666.

It is not a de Polignac number, because 52742178837 - 23 = 52742178829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52742178847) 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, 653988 + ... + 730194.

It is an arithmetic number, because the mean of its divisors is an integer number (4883789680).

Almost surely, 252742178837 is an apocalyptic number.

It is an amenable number.

52742178837 is a deficient number, since it is larger than the sum of its proper divisors (25398456043).

52742178837 is a wasteful number, since it uses less digits than its factorization.

52742178837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101849 (or 101843 counting only the distinct ones).

The product of its digits is 5268480, while the sum is 54.

The spelling of 52742178837 in words is "fifty-two billion, seven hundred forty-two million, one hundred seventy-eight thousand, eight hundred thirty-seven".

Divisors: 1 3 9 27 25633 76207 76899 228621 230697 685863 692091 2057589 1953414031 5860242093 17580726279 52742178837