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20294740669808 = 2411673171338821
BaseRepresentation
bin1001001110101001111001…
…10011101111010101110000
32122212011021101000212200202
410213110330303233111300
510130002112102413213
6111055135233334332
74163150410255133
oct447247463572560
978764241025622
1020294740669808
116514a51030760
12233930b7073a8
13b42a2a625637
145023b0ab421a
15252da5964b58
hex12753ccef570

20294740669808 has 40 divisors (see below), whose sum is σ = 42959440162416. Its totient is φ = 9211174963200.

The previous prime is 20294740669771. The next prime is 20294740669873. The reversal of 20294740669808 is 80896604749202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85550963 + ... + 85787858.

Almost surely, 220294740669808 is an apocalyptic number.

It is an amenable number.

20294740669808 is an abundant number, since it is smaller than the sum of its proper divisors (22664699492608).

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

20294740669808 is a wasteful number, since it uses less digits than its factorization.

20294740669808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171339513 (or 171339507 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 65.

The spelling of 20294740669808 in words is "twenty trillion, two hundred ninety-four billion, seven hundred forty million, six hundred sixty-nine thousand, eight hundred eight".

Divisors: 1 2 4 8 11 16 22 44 88 176 673 1346 2692 5384 7403 10768 14806 29612 59224 118448 171338821 342677642 685355284 1370710568 1884727031 2741421136 3769454062 7538908124 15077816248 30155632496 115311026533 230622053066 461244106132 922488212264 1268421291863 1844976424528 2536842583726 5073685167452 10147370334904 20294740669808