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208967148 = 22331321072
BaseRepresentation
bin11000111010010…
…01010111101100
3112120012122001000
430131021113230
5411443422043
632422520300
75115122445
oct1435112754
9476178030
10208967148
11a7a58125
1259b96090
13343a6a00
141da782cc
151352b2d3
hexc7495ec

208967148 has 108 divisors (see below), whose sum is σ = 592180680. Its totient is φ = 63696672.

The previous prime is 208967147. The next prime is 208967189. The reversal of 208967148 is 841769802.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a tau number, because it is divible by the number of its divisors (108).

It is not an unprimeable number, because it can be changed into a prime (208967147) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1952911 + ... + 1953017.

Almost surely, 2208967148 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 208967148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296090340).

208967148 is an abundant number, since it is smaller than the sum of its proper divisors (383213532).

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

208967148 is a wasteful number, since it uses less digits than its factorization.

208967148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 208967148 is about 14455.6960399698. The cubic root of 208967148 is about 593.4161184268.

The spelling of 208967148 in words is "two hundred eight million, nine hundred sixty-seven thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 13 18 26 27 36 39 52 54 78 107 108 117 156 169 214 234 321 338 351 428 468 507 642 676 702 963 1014 1284 1391 1404 1521 1926 2028 2782 2889 3042 3852 4173 4563 5564 5778 6084 8346 9126 11449 11556 12519 16692 18083 18252 22898 25038 34347 36166 37557 45796 50076 54249 68694 72332 75114 103041 108498 137388 148837 150228 162747 206082 216996 297674 309123 325494 412164 446511 488241 595348 618246 650988 893022 976482 1236492 1339533 1786044 1934881 1952964 2679066 3869762 4018599 5358132 5804643 7739524 8037198 11609286 16074396 17413929 23218572 34827858 52241787 69655716 104483574 208967148