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538378011185 = 57137112279043
BaseRepresentation
bin1111101010110011101…
…01001000001000110001
31220110122111012200101012
413311121311020020301
532310044232324220
61051154421120305
753616336405650
oct7653165101061
91813574180335
10538378011185
11198363396313
1288411859095
133b9cc168b31
141c0b4215197
15e010025ac5
hex7d59d48231

538378011185 has 16 divisors (see below), whose sum is σ = 743736387456. Its totient is φ = 366478793088.

The previous prime is 538378011179. The next prime is 538378011211. The reversal of 538378011185 is 581110873835.

It is a cyclic number.

It is not a de Polignac number, because 538378011185 - 26 = 538378011121 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56134727 + ... + 56144316.

It is an arithmetic number, because the mean of its divisors is an integer number (46483524216).

Almost surely, 2538378011185 is an apocalyptic number.

It is an amenable number.

538378011185 is a deficient number, since it is larger than the sum of its proper divisors (205358376271).

538378011185 is a wasteful number, since it uses less digits than its factorization.

538378011185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112279192.

The product of its (nonzero) digits is 806400, while the sum is 50.

The spelling of 538378011185 in words is "five hundred thirty-eight billion, three hundred seventy-eight million, eleven thousand, one hundred eighty-five".

Divisors: 1 5 7 35 137 685 959 4795 112279043 561395215 785953301 3929766505 15382228891 76911144455 107675602237 538378011185