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13728808900 = 2252117172
BaseRepresentation
bin11001100100100110…
…01111111111000100
31022102210011202022201
430302103033333010
5211104033341100
610150144004244
7664132643632
oct146223177704
938383152281
1013728808900
115905611364
1227b1900684
1313aa389b81
14943482352
1555541536a
hex3324cffc4

13728808900 has 27 divisors (see below), whose sum is σ = 29794058119. Its totient is φ = 5491054880.

The previous prime is 13728808897. The next prime is 13728808903. The reversal of 13728808900 is 980882731.

The square root of 13728808900 is 117170.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (13728808897) and next prime (13728808903).

It can be written as a sum of positive squares in 4 ways, for example, as 7911390916 + 5817417984 = 88946^2 + 76272^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13728808903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1165842 + ... + 1177558.

Almost surely, 213728808900 is an apocalyptic number.

13728808900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13728808900 is the 117170-th square number.

It is an amenable number.

13728808900 is an abundant number, since it is smaller than the sum of its proper divisors (16065249219).

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

13728808900 is an frugal number, since it uses more digits than its factorization.

13728808900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23448 (or 11724 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 46.

The spelling of 13728808900 in words is "thirteen billion, seven hundred twenty-eight million, eight hundred eight thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 11717 23434 46868 58585 117170 234340 292925 585850 1171700 137288089 274576178 549152356 686440445 1372880890 2745761780 3432202225 6864404450 13728808900