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56835253865 = 5132095941719
BaseRepresentation
bin110100111011101001…
…010010011001101001
312102200221120001012102
4310323221102121221
51412344311110430
642035412423145
74051300454405
oct647351223151
9172627501172
1056835253865
1122116023495
12b022017ab5
135489bb2b40
142a72444105
1517299ba345
hexd3ba52669

56835253865 has 16 divisors (see below), whose sum is σ = 73453900800. Its totient is φ = 41967640512.

The previous prime is 56835253837. The next prime is 56835253873.

56835253865 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-56835253865 is a prime.

It is a super-3 number, since 3×568352538653 (a number of 33 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 56835253865.

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, 1341476 + ... + 1383194.

It is an arithmetic number, because the mean of its divisors is an integer number (4590868800).

Almost surely, 256835253865 is an apocalyptic number.

It is an amenable number.

56835253865 is a deficient number, since it is larger than the sum of its proper divisors (16618646935).

56835253865 is a wasteful number, since it uses less digits than its factorization.

56835253865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62696.

The product of its digits is 25920000, while the sum is 56.

The spelling of 56835253865 in words is "fifty-six billion, eight hundred thirty-five million, two hundred fifty-three thousand, eight hundred sixty-five".

Divisors: 1 5 13 65 20959 41719 104795 208595 272467 542347 1362335 2711735 874388521 4371942605 11367050773 56835253865