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216103608 = 23327428777
BaseRepresentation
bin11001110000101…
…11101010111000
3120001122012102100
430320113222320
5420310303413
633235503400
75232564450
oct1470275270
9501565370
10216103608
11100a91926
1260457b60
1335a05076
14209b4d60
1513e8aa73
hexce17ab8

216103608 has 48 divisors (see below), whose sum is σ = 668893680. Its totient is φ = 61743744.

The previous prime is 216103597. The next prime is 216103627. The reversal of 216103608 is 806301612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213885 + ... + 214892.

It is an arithmetic number, because the mean of its divisors is an integer number (13935285).

Almost surely, 2216103608 is an apocalyptic number.

216103608 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

216103608 is an abundant number, since it is smaller than the sum of its proper divisors (452790072).

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

216103608 is a wasteful number, since it uses less digits than its factorization.

216103608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428796 (or 428789 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 216103608 is about 14700.4628498561. The cubic root of 216103608 is about 600.0959179987.

The spelling of 216103608 in words is "two hundred sixteen million, one hundred three thousand, six hundred eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 63 72 84 126 168 252 504 428777 857554 1286331 1715108 2572662 3001439 3430216 3858993 5145324 6002878 7717986 9004317 10290648 12005756 15435972 18008634 24011512 27012951 30871944 36017268 54025902 72034536 108051804 216103608