Search a number
-
+
864125890471 = 29414397165287
BaseRepresentation
bin11001001001100011110…
…10101010111110100111
310001121110102022111110001
430210301322222332213
5103124212211443341
61500550212442131
7116300562606634
oct14446172527647
93047412274401
10864125890471
113035235a0398
1211b582019347
136364343536c
142db76b7d18b
1517727d85d31
hexc931eaafa7

864125890471 has 16 divisors (see below), whose sum is σ = 915940146240. Its totient is φ = 813788926720.

The previous prime is 864125890451. The next prime is 864125890483. The reversal of 864125890471 is 174098521468.

It is a cyclic number.

It is not a de Polignac number, because 864125890471 - 227 = 863991672743 is a prime.

It is a super-3 number, since 3×8641258904713 (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864125890451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5145390 + ... + 5310676.

It is an arithmetic number, because the mean of its divisors is an integer number (57246259140).

Almost surely, 2864125890471 is an apocalyptic number.

864125890471 is a deficient number, since it is larger than the sum of its proper divisors (51814255769).

864125890471 is a wasteful number, since it uses less digits than its factorization.

864125890471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169754.

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 864125890471 in words is "eight hundred sixty-four billion, one hundred twenty-five million, eight hundred ninety thousand, four hundred seventy-one".

Divisors: 1 29 41 1189 4397 127513 165287 180277 4793323 5228033 6776767 196526243 726766939 21076241231 29797444499 864125890471