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16106505620 = 2254001201281
BaseRepresentation
bin11110000000000010…
…11100010110010100
31112120111020021001012
433000001130112110
5230441231134440
611222122151352
71110064016222
oct170001342624
945514207035
1016106505620
116915780077
123156052558
131698b66bca
14acb177b12
15644032e65
hex3c005c594

16106505620 has 24 divisors (see below), whose sum is σ = 33832283688. Its totient is φ = 6440960000.

The previous prime is 16106505601. The next prime is 16106505661. The reversal of 16106505620 is 2650560161.

It can be written as a sum of positive squares in 4 ways, for example, as 130051216 + 15976454404 = 11404^2 + 126398^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20621 + ... + 180660.

It is an arithmetic number, because the mean of its divisors is an integer number (1409678487).

Almost surely, 216106505620 is an apocalyptic number.

16106505620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16106505620 is an abundant number, since it is smaller than the sum of its proper divisors (17725778068).

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

16106505620 is a wasteful number, since it uses less digits than its factorization.

16106505620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205291 (or 205289 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 16106505620 in words is "sixteen billion, one hundred six million, five hundred five thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 4001 8002 16004 20005 40010 80020 201281 402562 805124 1006405 2012810 4025620 805325281 1610650562 3221301124 4026626405 8053252810 16106505620