Search a number
-
+
208244512 = 2572592251
BaseRepresentation
bin11000110100110…
…00111100100000
3112111211220202201
430122120330200
5411302311022
632355222544
75106022600
oct1432307440
9474756681
10208244512
11a7604203
12598a7a54
13341b2b08
141d92ac00
1513437127
hexc698f20

208244512 has 72 divisors (see below), whose sum is σ = 485215920. Its totient is φ = 87696000.

The previous prime is 208244501. The next prime is 208244539. The reversal of 208244512 is 215442802.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 91387 + ... + 93637.

It is an arithmetic number, because the mean of its divisors is an integer number (6739110).

Almost surely, 2208244512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208244512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242607960).

208244512 is an abundant number, since it is smaller than the sum of its proper divisors (276971408).

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

208244512 is a wasteful number, since it uses less digits than its factorization.

208244512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2334 (or 2319 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 208244512 is about 14430.6795404790. The cubic root of 208244512 is about 592.7312913045.

The spelling of 208244512 in words is "two hundred eight million, two hundred forty-four thousand, five hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 59 98 112 118 196 224 236 392 413 472 784 826 944 1568 1652 1888 2251 2891 3304 4502 5782 6608 9004 11564 13216 15757 18008 23128 31514 36016 46256 63028 72032 92512 110299 126056 132809 220598 252112 265618 441196 504224 531236 882392 929663 1062472 1764784 1859326 2124944 3529568 3718652 4249888 6507641 7437304 13015282 14874608 26030564 29749216 52061128 104122256 208244512