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52185352038869 = 745757112856421
BaseRepresentation
bin10111101110110010110010…
…10111101110100111010101
320211202212111220120021110102
423313121121113232213111
523320001100110220434
6302553341511503445
713664160446312150
oct1367313127564725
9224685456507412
1052185352038869
111569a757836075
125a29a54987b85
13231709967869a
14cc5ada9d2c97
156076da13a07e
hex2f76595ee9d5

52185352038869 has 16 divisors (see below), whose sum is σ = 59781393348096. Its totient is φ = 44624592835200.

The previous prime is 52185352038863. The next prime is 52185352038887. The reversal of 52185352038869 is 96883025358125.

It is not a de Polignac number, because 52185352038869 - 212 = 52185352034773 is a prime.

It is a super-2 number, since 2×521853520388692 (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52185352038863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16841279 + ... + 19697699.

It is an arithmetic number, because the mean of its divisors is an integer number (3736337084256).

Almost surely, 252185352038869 is an apocalyptic number.

It is an amenable number.

52185352038869 is a deficient number, since it is larger than the sum of its proper divisors (7596041309227).

52185352038869 is a wasteful number, since it uses less digits than its factorization.

52185352038869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862596.

The product of its (nonzero) digits is 124416000, while the sum is 65.

The spelling of 52185352038869 in words is "fifty-two trillion, one hundred eighty-five billion, three hundred fifty-two million, thirty-eight thousand, eight hundred sixty-nine".

Divisors: 1 7 457 3199 5711 39977 2609927 2856421 18269489 19994947 1305384397 9137690779 16313020331 114191142317 7455050291267 52185352038869