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208680832 = 274493631
BaseRepresentation
bin11000111000000…
…11011110000000
3112112200002021201
430130003132000
5411410241312
632412430544
75112520633
oct1434033600
9475602251
10208680832
11a7881aa8
1259a78454
13343065a9
141da01c1a
15134c1557
hexc703780

208680832 has 32 divisors (see below), whose sum is σ = 416772000. Its totient is φ = 104079360.

The previous prime is 208680821. The next prime is 208680833. The reversal of 208680832 is 238086802.

208680832 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 208680791 and 208680800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208680833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55657 + ... + 59287.

It is an arithmetic number, because the mean of its divisors is an integer number (13024125).

Almost surely, 2208680832 is an apocalyptic number.

It is an amenable number.

208680832 is a deficient number, since it is larger than the sum of its proper divisors (208091168).

208680832 is an equidigital number, since it uses as much as digits as its factorization.

208680832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4094 (or 4082 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 208680832 is about 14445.7894211428. The cubic root of 208680832 is about 593.1449718403.

The spelling of 208680832 in words is "two hundred eight million, six hundred eighty thousand, eight hundred thirty-two".

Divisors: 1 2 4 8 16 32 64 128 449 898 1796 3592 3631 7184 7262 14368 14524 28736 29048 57472 58096 116192 232384 464768 1630319 3260638 6521276 13042552 26085104 52170208 104340416 208680832