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378752896668 = 2231019175917609
BaseRepresentation
bin1011000001011110110…
…11101000111010011100
31100012121221101200120210
411200233123220322130
522201141220143133
6445555141012420
736235564334226
oct5405733507234
91305557350523
10378752896668
111366a0155173
12614a36b4110
1329940789453
1414490409416
159cbb43a763
hex582f6e8e9c

378752896668 has 48 divisors (see below), whose sum is σ = 885177216000. Its totient is φ = 126048206208.

The previous prime is 378752896661. The next prime is 378752896721. The reversal of 378752896668 is 866698257873.

It is a self number, because there is not a number n which added to its sum of digits gives 378752896668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378752896661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21500248 + ... + 21517856.

It is an arithmetic number, because the mean of its divisors is an integer number (18441192000).

Almost surely, 2378752896668 is an apocalyptic number.

It is an amenable number.

378752896668 is an abundant number, since it is smaller than the sum of its proper divisors (506424319332).

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

378752896668 is a wasteful number, since it uses less digits than its factorization.

378752896668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20394 (or 20392 counting only the distinct ones).

The product of its digits is 1463132160, while the sum is 75.

The spelling of 378752896668 in words is "three hundred seventy-eight billion, seven hundred fifty-two million, eight hundred ninety-six thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 12 1019 1759 2038 3057 3518 4076 5277 6114 7036 10554 12228 17609 21108 35218 52827 70436 105654 211308 1792421 3584842 5377263 7169684 10754526 17943571 21509052 30974231 35887142 53830713 61948462 71774284 92922693 107661426 123896924 185845386 215322852 371690772 31562741389 63125482778 94688224167 126250965556 189376448334 378752896668