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68780223360000 = 21034542945751
BaseRepresentation
bin11111010001110001001001…
…10001111110110000000000
3100000112022210000200020220000
433220320210301332300000
533003343344140010000
6402141110504520000
720326131024202305
oct1750704461766000
9300468700606800
1068780223360000
111aa0858aa98759
12786a099780000
132c4bc410ba269
1412dada29990ac
157e41e89b0000
hex3e8e24c7ec00

68780223360000 has 1100 divisors, whose sum is σ = 265512874870320. Its totient is φ = 17708544000000.

The previous prime is 68780223359963. The next prime is 68780223360019. The reversal of 68780223360000 is 6332208786.

68780223360000 is a `hidden beast` number, since 6 + 8 + 7 + 8 + 0 + 2 + 2 + 33 + 600 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 1503337125 + ... + 1503382875.

Almost surely, 268780223360000 is an apocalyptic number.

68780223360000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68780223360000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132756437435160).

68780223360000 is an abundant number, since it is smaller than the sum of its proper divisors (196732651510320).

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

68780223360000 is an equidigital number, since it uses as much as digits as its factorization.

68780223360000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45832 (or 45790 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

Adding to 68780223360000 its reverse (6332208786), we get a palindrome (68786555568786).

The spelling of 68780223360000 in words is "sixty-eight trillion, seven hundred eighty billion, two hundred twenty-three million, three hundred sixty thousand".