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208801348 = 22721065313
BaseRepresentation
bin11000111001000…
…00111001000100
3112112220012121021
430130200321010
5411423120343
632415200524
75113532200
oct1434407104
9475805537
10208801348
11a79545a8
1259b16144
13343493c2
141da33b00
15134e70ed
hexc720e44

208801348 has 18 divisors (see below), whose sum is σ = 425060286. Its totient is φ = 89486208.

The previous prime is 208801343. The next prime is 208801349. The reversal of 208801348 is 843108802.

It can be written as a sum of positive squares in only one way, i.e., 208744704 + 56644 = 14448^2 + 238^2 .

It is not an unprimeable number, because it can be changed into a prime (208801343) 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 5 ways as a sum of consecutive naturals, for example, 532461 + ... + 532852.

Almost surely, 2208801348 is an apocalyptic number.

208801348 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

208801348 is an abundant number, since it is smaller than the sum of its proper divisors (216258938).

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

208801348 is a wasteful number, since it uses less digits than its factorization.

208801348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065331 (or 1065322 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 208801348 is about 14449.9601383533. The cubic root of 208801348 is about 593.2591329450.

The spelling of 208801348 in words is "two hundred eight million, eight hundred one thousand, three hundred forty-eight".

Divisors: 1 2 4 7 14 28 49 98 196 1065313 2130626 4261252 7457191 14914382 29828764 52200337 104400674 208801348