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6867741668 = 221725940953
BaseRepresentation
bin1100110010101100…
…10110101111100100
3122201121212102110112
412121112112233210
5103031120213133
63053251312152
7332121561314
oct63126265744
918647772415
106867741668
112a0472aa67
1213b7bab658
13855aa9588
1449216d444
152a2de1648
hex199596be4

6867741668 has 18 divisors (see below), whose sum is σ = 12767110146. Its totient is φ = 3231877888.

The previous prime is 6867741667. The next prime is 6867741709. The reversal of 6867741668 is 8661477686.

It can be written as a sum of positive squares in 3 ways, for example, as 1952049124 + 4915692544 = 44182^2 + 70112^2 .

It is not an unprimeable number, because it can be changed into a prime (6867741667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2969321 + ... + 2971632.

It is an arithmetic number, because the mean of its divisors is an integer number (709283897).

Almost surely, 26867741668 is an apocalyptic number.

6867741668 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

6867741668 is a deficient number, since it is larger than the sum of its proper divisors (5899368478).

6867741668 is a wasteful number, since it uses less digits than its factorization.

6867741668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5940991 (or 5940972 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 59.

The square root of 6867741668 is about 82871.8388115046. The cubic root of 6867741668 is about 1900.8068288947.

The spelling of 6867741668 in words is "six billion, eight hundred sixty-seven million, seven hundred forty-one thousand, six hundred sixty-eight".

Divisors: 1 2 4 17 34 68 289 578 1156 5940953 11881906 23763812 100996201 201992402 403984804 1716935417 3433870834 6867741668