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128414208 = 2931359109
BaseRepresentation
bin1111010011101…
…11001000000000
322221122010011210
413221313020000
5230333223313
620424210120
73116334306
oct751671000
9287563153
10128414208
116653954a
1237009940
13207b1a50
14130aa276
15b4189c3
hex7a77200

128414208 has 160 divisors (see below), whose sum is σ = 378100800. Its totient is φ = 38486016.

The previous prime is 128414203. The next prime is 128414239. The reversal of 128414208 is 802414821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128414203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1178058 + ... + 1178166.

It is an arithmetic number, because the mean of its divisors is an integer number (2363130).

Almost surely, 2128414208 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 128414208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189050400).

128414208 is an abundant number, since it is smaller than the sum of its proper divisors (249686592).

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

128414208 is a wasteful number, since it uses less digits than its factorization.

128414208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 128414208 is about 11331.9992940346. Note that the first 3 decimals coincide. The cubic root of 128414208 is about 504.5114485673.

The spelling of 128414208 in words is "one hundred twenty-eight million, four hundred fourteen thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 59 64 78 96 104 109 118 128 156 177 192 208 218 236 256 312 327 354 384 416 436 472 512 624 654 708 767 768 832 872 944 1248 1308 1416 1417 1534 1536 1664 1744 1888 2301 2496 2616 2832 2834 3068 3328 3488 3776 4251 4602 4992 5232 5664 5668 6136 6431 6656 6976 7552 8502 9204 9984 10464 11328 11336 12272 12862 13952 15104 17004 18408 19293 19968 20928 22656 22672 24544 25724 27904 30208 34008 36816 38586 41856 45312 45344 49088 51448 55808 68016 73632 77172 83603 83712 90624 90688 98176 102896 136032 147264 154344 167206 167424 181376 196352 205792 250809 272064 294528 308688 334412 362752 392704 411584 501618 544128 589056 617376 668824 725504 823168 1003236 1088256 1178112 1234752 1337648 1646336 2006472 2176512 2469504 2675296 3292672 4012944 4939008 5350592 8025888 9878016 10701184 16051776 21402368 32103552 42804736 64207104 128414208