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854185012468 = 221712561544301
BaseRepresentation
bin11000110111000010110…
…01001110110011110100
310000122210121210120110021
430123201121032303310
5102443332330344333
61452223541134524
7115466333544214
oct14334131166364
93018717716407
10854185012468
112aa292197637
121196689ba444
136271aa78328
142d4b280a244
15173452a582d
hexc6e164ecf4

854185012468 has 12 divisors (see below), whose sum is σ = 1582754582052. Its totient is φ = 401969417600.

The previous prime is 854185012441. The next prime is 854185012489. The reversal of 854185012468 is 864210581458.

It can be written as a sum of positive squares in 2 ways, for example, as 310585519204 + 543599493264 = 557302^2 + 737292^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6280772083 + ... + 6280772218.

It is an arithmetic number, because the mean of its divisors is an integer number (131896215171).

Almost surely, 2854185012468 is an apocalyptic number.

It is an amenable number.

854185012468 is a deficient number, since it is larger than the sum of its proper divisors (728569569584).

854185012468 is a wasteful number, since it uses less digits than its factorization.

854185012468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12561544322 (or 12561544320 counting only the distinct ones).

The product of its (nonzero) digits is 2457600, while the sum is 52.

The spelling of 854185012468 in words is "eight hundred fifty-four billion, one hundred eighty-five million, twelve thousand, four hundred sixty-eight".

Divisors: 1 2 4 17 34 68 12561544301 25123088602 50246177204 213546253117 427092506234 854185012468