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68044904548 = 22174432258827
BaseRepresentation
bin111111010111110010…
…101101100001100100
320111122011111022002221
4333113302231201210
52103323443421143
651132010242124
74626134100625
oct772762554144
9214564438087
1068044904548
1126948635a05
1211230126344
13655539333a
1434170c9a4c
151b83b6d2ed
hexfd7cad864

68044904548 has 24 divisors (see below), whose sum is σ = 126367873632. Its totient is φ = 31948834944.

The previous prime is 68044904539. The next prime is 68044904549. The reversal of 68044904548 is 84540944086.

It is a junction number, because it is equal to n+sod(n) for n = 68044904495 and 68044904504.

It is not an unprimeable number, because it can be changed into a prime (68044904549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1099290 + ... + 1159537.

It is an arithmetic number, because the mean of its divisors is an integer number (5265328068).

Almost surely, 268044904548 is an apocalyptic number.

68044904548 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

68044904548 is a deficient number, since it is larger than the sum of its proper divisors (58322969084).

68044904548 is a wasteful number, since it uses less digits than its factorization.

68044904548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2259291 (or 2259289 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 52.

The spelling of 68044904548 in words is "sixty-eight billion, forty-four million, nine hundred four thousand, five hundred forty-eight".

Divisors: 1 2 4 17 34 68 443 886 1772 7531 15062 30124 2258827 4517654 9035308 38400059 76800118 153600236 1000660361 2001320722 4002641444 17011226137 34022452274 68044904548