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6720609952 = 257211142193
BaseRepresentation
bin1100100001001010…
…00101111010100000
3122100101000100200201
412100211011322200
5102230434004302
63030513554544
7325354146010
oct62045057240
918311010621
106720609952
112939677801
121376875a54
138314730a4
1447a7cdc40
1529502bc87
hex190945ea0

6720609952 has 48 divisors (see below), whose sum is σ = 15193144512. Its totient is φ = 2866590720.

The previous prime is 6720609923. The next prime is 6720609967. The reversal of 6720609952 is 2599060276.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23833 + ... + 118360.

It is an arithmetic number, because the mean of its divisors is an integer number (316523844).

Almost surely, 26720609952 is an apocalyptic number.

It is an amenable number.

6720609952 is an abundant number, since it is smaller than the sum of its proper divisors (8472534560).

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

6720609952 is a wasteful number, since it uses less digits than its factorization.

6720609952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142421 (or 142413 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 6720609952 is about 81979.3263695183. The cubic root of 6720609952 is about 1887.1346849802.

The spelling of 6720609952 in words is "six billion, seven hundred twenty million, six hundred nine thousand, nine hundred fifty-two".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 211 224 422 844 1477 1688 2954 3376 5908 6752 11816 23632 47264 142193 284386 568772 995351 1137544 1990702 2275088 3981404 4550176 7962808 15925616 30002723 31851232 60005446 120010892 210019061 240021784 420038122 480043568 840076244 960087136 1680152488 3360304976 6720609952