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74842538511 = 31389197109453
BaseRepresentation
bin100010110110011110…
…1101000001000001111
321011011220102212212210
41011230331220020033
52211234142213021
654214315201503
75256445036506
oct1055475501017
9234156385783
1074842538511
1129816730a14
1212608746293
137099794060
14389dc0983d
151e30811e76
hex116cf6820f

74842538511 has 32 divisors (see below), whose sum is σ = 109226335680. Its totient is φ = 45307874304.

The previous prime is 74842538509. The next prime is 74842538527. The reversal of 74842538511 is 11583524847.

It is not a de Polignac number, because 74842538511 - 21 = 74842538509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74842538501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 629061 + ... + 738513.

It is an arithmetic number, because the mean of its divisors is an integer number (3413322990).

Almost surely, 274842538511 is an apocalyptic number.

74842538511 is a deficient number, since it is larger than the sum of its proper divisors (34383797169).

74842538511 is a wasteful number, since it uses less digits than its factorization.

74842538511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109755.

The product of its digits is 1075200, while the sum is 48.

The spelling of 74842538511 in words is "seventy-four billion, eight hundred forty-two million, five hundred thirty-eight thousand, five hundred eleven".

Divisors: 1 3 13 39 89 197 267 591 1157 2561 3471 7683 17533 52599 109453 227929 328359 683787 1422889 4268667 9741317 21562241 29223951 64686723 126637121 280309133 379911363 840927399 1919039449 5757118347 24947512837 74842538511