Search a number
-
+
68927786780176 = 24892233212
BaseRepresentation
bin11111010110000100000000…
…01111110000011000010000
3100001001102122222021200121101
433223002000033300120100
533013303101403431201
6402332553233034144
720342603545445302
oct1753020017603020
9301042588250541
1068927786780176
111aa6512376a375
1278928003b5954
132c5cb29913bbc
1413041a08c7972
157e7e836ded01
hex3eb0803f0610

68927786780176 has 45 divisors (see below), whose sum is σ = 135070773319783. Its totient is φ = 34075197432320.

The previous prime is 68927786780129. The next prime is 68927786780261. The reversal of 68927786780176 is 67108768772986.

The square root of 68927786780176 is 8302276.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 8930988802576 + 59996797977600 = 2988476^2 + 7745760^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68927786780176.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2955598596 + ... + 2955621916.

Almost surely, 268927786780176 is an apocalyptic number.

68927786780176 is the 8302276-th square number.

It is an amenable number.

68927786780176 is a deficient number, since it is larger than the sum of its proper divisors (66142986539607).

68927786780176 is an frugal number, since it uses more digits than its factorization.

68927786780176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46828 (or 23412 counting only the distinct ones).

The product of its (nonzero) digits is 4779565056, while the sum is 82.

The spelling of 68927786780176 in words is "sixty-eight trillion, nine hundred twenty-seven billion, seven hundred eighty-six million, seven hundred eighty thousand, one hundred seventy-six".

Divisors: 1 2 4 8 16 89 178 356 712 1424 7921 15842 23321 31684 46642 63368 93284 126736 186568 373136 2075569 4151138 8302276 16604552 33209104 184725641 369451282 543869041 738902564 1087738082 1477805128 2175476164 2955610256 4350952328 8701904656 48404344649 96808689298 193617378596 387234757192 774469514384 4307986673761 8615973347522 17231946695044 34463893390088 68927786780176