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212969985176892 = 2231731631247926449
BaseRepresentation
bin110000011011000111110000…
…010100000111010100111100
31000221001201202102221120222210
4300123013300110013110330
5210403300012201130032
62032541021024140420
762600400524312256
oct6033076024072474
91027051672846883
10212969985176892
116194a077575209
121ba77015167710
1391aaca2792228
143a83b33662cd6
151994c886702cc
hexc1b1f050753c

212969985176892 has 96 divisors (see below), whose sum is σ = 526389566976000. Its totient is φ = 66785111764992.

The previous prime is 212969985176867. The next prime is 212969985176933. The reversal of 212969985176892 is 298671589969212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8052086484 + ... + 8052112932.

It is an arithmetic number, because the mean of its divisors is an integer number (5483224656000).

Almost surely, 2212969985176892 is an apocalyptic number.

It is an amenable number.

212969985176892 is an abundant number, since it is smaller than the sum of its proper divisors (313419581799108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212969985176892 is a wasteful number, since it uses less digits than its factorization.

212969985176892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42115 (or 42113 counting only the distinct ones).

The product of its digits is 4232632320, while the sum is 84.

The spelling of 212969985176892 in words is "two hundred twelve trillion, nine hundred sixty-nine billion, nine hundred eighty-five million, one hundred seventy-six thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 3163 6326 9489 12479 12652 18978 24958 26449 37437 37956 49916 52898 53771 74874 79347 105796 107542 149748 158694 161313 212143 215084 317388 322626 424286 449633 636429 645252 848572 899266 1272858 1348899 1798532 2545716 2697798 5395596 39471077 78942154 83658187 118413231 157884308 167316374 236826462 250974561 330057071 334632748 473652924 501949122 660114142 671008309 990171213 1003898244 1320228284 1342016618 1422189179 1980342426 2013024927 2684033236 2844378358 3960684852 4026049854 4266567537 5610970207 5688756716 8052099708 8533135074 11221940414 16832910621 17066270148 22443880828 33665821242 67331642484 1043970515573 2087941031146 3131911546719 4175882062292 6263823093438 12527646186876 17747498764741 35494997529482 53242496294223 70989995058964 106484992588446 212969985176892