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864125521468 = 221187151225347
BaseRepresentation
bin11001001001100011110…
…01010000111000111100
310001121110101121202021021
430210301321100320330
5103124212113141333
61500550200513524
7116300556512056
oct14446171207074
93047411552237
10864125521468
11303523369130
1211b581a7b8a4
1363643336411
142db76ac48d6
1517727d1182d
hexc931e50e3c

864125521468 has 24 divisors (see below), whose sum is σ = 1649720427264. Its totient is φ = 392778078000.

The previous prime is 864125521453. The next prime is 864125521477.

864125521468 is nontrivially palindromic in base 10.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 3721971 + ... + 3947317.

It is an arithmetic number, because the mean of its divisors is an integer number (68738351136).

Almost surely, 2864125521468 is an apocalyptic number.

It is an amenable number.

864125521468 is a deficient number, since it is larger than the sum of its proper divisors (785594905796).

864125521468 is a wasteful number, since it uses less digits than its factorization.

864125521468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312513 (or 312511 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 52.

The spelling of 864125521468 in words is "eight hundred sixty-four billion, one hundred twenty-five million, five hundred twenty-one thousand, four hundred sixty-eight".

Divisors: 1 2 4 11 22 44 87151 174302 225347 348604 450694 901388 958661 1917322 2478817 3834644 4957634 9915268 19639216397 39278432794 78556865588 216031380367 432062760734 864125521468