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2144312823990 = 2351719721342817
BaseRepresentation
bin11111001101000011000…
…000010001000010110110
321120222211211212220000010
4133031003000101002312
5240113023040331430
64321030025401050
7310631033161161
oct37150300210266
97528754786003
102144312823990
11757441761477
122a76ba039186
131272917b590c
1475adcbc2ad8
153aba2667cb0
hex1f3430110b6

2144312823990 has 64 divisors (see below), whose sum is σ = 5476737841344. Its totient is φ = 535448567808.

The previous prime is 2144312823979. The next prime is 2144312824019. The reversal of 2144312823990 is 993282134412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10570939 + ... + 10771878.

It is an arithmetic number, because the mean of its divisors is an integer number (85574028771).

Almost surely, 22144312823990 is an apocalyptic number.

2144312823990 is an abundant number, since it is smaller than the sum of its proper divisors (3332425017354).

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

2144312823990 is a wasteful number, since it uses less digits than its factorization.

2144312823990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21343041.

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 2144312823990 in words is "two trillion, one hundred forty-four billion, three hundred twelve million, eight hundred twenty-three thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 170 197 255 394 510 591 985 1182 1970 2955 3349 5910 6698 10047 16745 20094 33490 50235 100470 21342817 42685634 64028451 106714085 128056902 213428170 320142255 362827889 640284510 725655778 1088483667 1814139445 2176967334 3628278890 4204534949 5442418335 8409069898 10884836670 12613604847 21022674745 25227209694 42045349490 63068024235 71477094133 126136048470 142954188266 214431282399 357385470665 428862564798 714770941330 1072156411995 2144312823990