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20275658292 = 22371101235621
BaseRepresentation
bin10010111000100001…
…011111111000110100
31221100001020011100010
4102320201133320310
5313011032031132
613151533420220
71315310152251
oct227041377064
957301204303
1020275658292
11866509819a
123b1a33a670
131bb1832056
14da4b60428
157da06c6cc
hex4b885fe34

20275658292 has 48 divisors (see below), whose sum is σ = 48451423104. Its totient is φ = 6597360000.

The previous prime is 20275658287. The next prime is 20275658317. The reversal of 20275658292 is 29285657202.

It is a super-2 number, since 2×202756582922 (a number of 21 digits) contains 22 as substring.

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, 31759 + ... + 203862.

It is an arithmetic number, because the mean of its divisors is an integer number (1009404648).

Almost surely, 220275658292 is an apocalyptic number.

It is an amenable number.

20275658292 is an abundant number, since it is smaller than the sum of its proper divisors (28175764812).

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

20275658292 is a wasteful number, since it uses less digits than its factorization.

20275658292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235800 (or 235798 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 20275658292 in words is "twenty billion, two hundred seventy-five million, six hundred fifty-eight thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 12 71 101 142 202 213 284 303 404 426 606 852 1212 7171 14342 21513 28684 43026 86052 235621 471242 706863 942484 1413726 2827452 16729091 23797721 33458182 47595442 50187273 66916364 71393163 95190884 100374546 142786326 200749092 285572652 1689638191 3379276382 5068914573 6758552764 10137829146 20275658292