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293980128 = 253131032287
BaseRepresentation
bin10001100001011…
…100011111100000
3202111011201220220
4101201130133200
51100224331003
645101003040
710166534631
oct2141343740
9674151826
10293980128
11140a42692
1282553480
1348ba0a50
142b087888
151ac20353
hex1185c7e0

293980128 has 96 divisors (see below), whose sum is σ = 839494656. Its totient is φ = 89538048.

The previous prime is 293980097. The next prime is 293980153. The reversal of 293980128 is 821089392.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 293980128.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127401 + ... + 129687.

It is an arithmetic number, because the mean of its divisors is an integer number (8744736).

Almost surely, 2293980128 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 293980128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419747328).

293980128 is an abundant number, since it is smaller than the sum of its proper divisors (545514528).

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

293980128 is a wasteful number, since it uses less digits than its factorization.

293980128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416 (or 2408 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 293980128 is about 17145.8487104022. The cubic root of 293980128 is about 664.9249942728.

The spelling of 293980128 in words is "two hundred ninety-three million, nine hundred eighty thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 78 96 103 104 156 206 208 309 312 412 416 618 624 824 1236 1248 1339 1648 2287 2472 2678 3296 4017 4574 4944 5356 6861 8034 9148 9888 10712 13722 16068 18296 21424 27444 29731 32136 36592 42848 54888 59462 64272 73184 89193 109776 118924 128544 178386 219552 235561 237848 356772 471122 475696 706683 713544 942244 951392 1413366 1427088 1884488 2826732 2854176 3062293 3768976 5653464 6124586 7537952 9186879 11306928 12249172 18373758 22613856 24498344 36747516 48996688 73495032 97993376 146990064 293980128