Search a number
-
+
208385152 = 272370783
BaseRepresentation
bin11000110101110…
…11010010000000
3112112010001200121
430122323102000
5411321311102
632402230024
75110146613
oct1432732200
9475101617
10208385152
11a769a938
1259955314
1334231b31
141d96617a
1513463b37
hexc6bb480

208385152 has 32 divisors (see below), whose sum is σ = 433198080. Its totient is φ = 99661056.

The previous prime is 208385137. The next prime is 208385183. The reversal of 208385152 is 251583802.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32448 + ... + 38335.

It is an arithmetic number, because the mean of its divisors is an integer number (13537440).

Almost surely, 2208385152 is an apocalyptic number.

It is an amenable number.

208385152 is an abundant number, since it is smaller than the sum of its proper divisors (224812928).

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

208385152 is an equidigital number, since it uses as much as digits as its factorization.

208385152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70820 (or 70808 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 208385152 is about 14435.5516694029. The cubic root of 208385152 is about 592.8646969321.

The spelling of 208385152 in words is "two hundred eight million, three hundred eighty-five thousand, one hundred fifty-two".

Divisors: 1 2 4 8 16 23 32 46 64 92 128 184 368 736 1472 2944 70783 141566 283132 566264 1132528 1628009 2265056 3256018 4530112 6512036 9060224 13024072 26048144 52096288 104192576 208385152