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6668146804 = 221113128831
BaseRepresentation
bin1100011010111001…
…11101100001110100
3122012201021221210011
412031130331201310
5102124021144204
63021401310004
7324146212144
oct61534754164
918181257704
106668146804
112911aa4430
121361195304
138236347c7
14473854924
15290617304
hex18d73d874

6668146804 has 36 divisors (see below), whose sum is σ = 12829469184. Its totient is φ = 3007498000.

The previous prime is 6668146801. The next prime is 6668146873. The reversal of 6668146804 is 4086418666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6668146801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 750669 + ... + 759499.

It is an arithmetic number, because the mean of its divisors is an integer number (356374144).

Almost surely, 26668146804 is an apocalyptic number.

It is an amenable number.

6668146804 is a deficient number, since it is larger than the sum of its proper divisors (6161322380).

6668146804 is a wasteful number, since it uses less digits than its factorization.

6668146804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9108 (or 8975 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 49.

The square root of 6668146804 is about 81658.7215427721. The cubic root of 6668146804 is about 1882.2113337110.

The spelling of 6668146804 in words is "six billion, six hundred sixty-eight million, one hundred forty-six thousand, eight hundred four".

Divisors: 1 2 4 11 22 44 131 262 524 1441 2882 5764 8831 17161 17662 34322 35324 68644 97141 188771 194282 377542 388564 755084 1156861 2313722 4627444 12725471 25450942 50901884 151548791 303097582 606195164 1667036701 3334073402 6668146804