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20576285885876 = 2273374038753993
BaseRepresentation
bin1001010110110110010100…
…01101100000010110110100
32200212001222202000202010212
410223123022031200112310
510144110213141322001
6111432340520404552
74222405355152640
oct453331215402664
980761882022125
1020576285885876
116613398a61706
1223839a4616758
13b63448c40646
14511c7cc43c20
1525a382d847bb
hex12b6ca3605b4

20576285885876 has 48 divisors (see below), whose sum is σ = 41276472671616. Its totient is φ = 8791860317184.

The previous prime is 20576285885867. The next prime is 20576285885917. The reversal of 20576285885876 is 67858858267502.

It is a junction number, because it is equal to n+sod(n) for n = 20576285885797 and 20576285885806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381064736 + ... + 381118728.

It is an arithmetic number, because the mean of its divisors is an integer number (859926513992).

Almost surely, 220576285885876 is an apocalyptic number.

It is an amenable number.

20576285885876 is an abundant number, since it is smaller than the sum of its proper divisors (20700186785740).

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

20576285885876 is a wasteful number, since it uses less digits than its factorization.

20576285885876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94728 (or 94726 counting only the distinct ones).

The product of its (nonzero) digits is 3612672000, while the sum is 77.

The spelling of 20576285885876 in words is "twenty trillion, five hundred seventy-six billion, two hundred eighty-five million, eight hundred eighty-five thousand, eight hundred seventy-six".

Divisors: 1 2 4 7 14 28 337 674 1348 2359 4718 9436 40387 53993 80774 107986 161548 215972 282709 377951 565418 755902 1130836 1511804 13610419 18195641 27220838 36391282 54441676 72782564 95272933 127369487 190545866 254738974 381091732 509477948 2180615291 4361230582 8722461164 15264307037 30528614074 61057228148 734867353067 1469734706134 2939469412268 5144071471469 10288142942938 20576285885876