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1268895068960 = 2559491835591
BaseRepresentation
bin10010011101110000000…
…010100011001100100000
311111022020110221020102012
4102131300002203030200
5131242144114201320
62410531121012052
7160450255061261
oct22356002431440
94438213836365
101268895068960
1144a154206112
12185b06484028
139286bb460bc
14455b44ba968
15230182de4c5
hex127700a3320

1268895068960 has 48 divisors (see below), whose sum is σ = 2998084041792. Its totient is φ = 507503942400.

The previous prime is 1268895068957. The next prime is 1268895068977. The reversal of 1268895068960 is 698605988621.

It is a super-2 number, since 2×12688950689602 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1100765 + ... + 1936355.

It is an arithmetic number, because the mean of its divisors is an integer number (62460084204).

Almost surely, 21268895068960 is an apocalyptic number.

1268895068960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1268895068960 is an abundant number, since it is smaller than the sum of its proper divisors (1729188972832).

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

1268895068960 is an equidigital number, since it uses as much as digits as its factorization.

1268895068960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845097 (or 845089 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 68.

The spelling of 1268895068960 in words is "one trillion, two hundred sixty-eight billion, eight hundred ninety-five million, sixty-eight thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 9491 18982 37964 47455 75928 94910 151856 189820 303712 379640 759280 835591 1518560 1671182 3342364 4177955 6684728 8355910 13369456 16711820 26738912 33423640 66847280 133694560 7930594181 15861188362 31722376724 39652970905 63444753448 79305941810 126889506896 158611883620 253779013792 317223767240 634447534480 1268895068960