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20316227892 = 2233315998539
BaseRepresentation
bin10010111010111100…
…010000100100110100
31221102212120022100220
4102322330100210310
5313101423243032
613155543134340
71316312042052
oct227274204464
957385508326
1020316227892
118685a87794
123b2ba443b0
131bba067c2c
14daa2c11d2
157dd8d312c
hex4baf10934

20316227892 has 48 divisors (see below), whose sum is σ = 47632704000. Its totient is φ = 6739555680.

The previous prime is 20316227881. The next prime is 20316227929. The reversal of 20316227892 is 29872261302.

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, 2374959 + ... + 2383497.

It is an arithmetic number, because the mean of its divisors is an integer number (992348000).

Almost surely, 220316227892 is an apocalyptic number.

It is an amenable number.

20316227892 is an abundant number, since it is smaller than the sum of its proper divisors (27316476108).

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

20316227892 is a wasteful number, since it uses less digits than its factorization.

20316227892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9476 (or 9474 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 20316227892 in words is "twenty billion, three hundred sixteen million, two hundred twenty-seven thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 12 331 599 662 993 1198 1324 1797 1986 2396 3594 3972 7188 8539 17078 25617 34156 51234 102468 198269 396538 594807 793076 1189614 2379228 2826409 5114861 5652818 8479227 10229722 11305636 15344583 16958454 20459444 30689166 33916908 61378332 1693018991 3386037982 5079056973 6772075964 10158113946 20316227892