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281996088 = 233113134457
BaseRepresentation
bin10000110011101…
…110101100111000
3201122121212220120
4100303232230320
51034142333323
643552053240
76662633013
oct2063565470
9648555816
10281996088
111351a7920
127a534220
13465660ba
142964837a
1519b545e3
hex10ceeb38

281996088 has 64 divisors (see below), whose sum is σ = 793912320. Its totient is φ = 82694400.

The previous prime is 281996083. The next prime is 281996089. The reversal of 281996088 is 880699182.

It is a self number, because there is not a number n which added to its sum of digits gives 281996088.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281996083) 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, 9045 + ... + 25412.

It is an arithmetic number, because the mean of its divisors is an integer number (12404880).

Almost surely, 2281996088 is an apocalyptic number.

It is an amenable number.

281996088 is an abundant number, since it is smaller than the sum of its proper divisors (511916232).

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

281996088 is a wasteful number, since it uses less digits than its factorization.

281996088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34508 (or 34504 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 51.

The square root of 281996088 is about 16792.7391452377. The cubic root of 281996088 is about 655.7641862609.

The spelling of 281996088 in words is "two hundred eighty-one million, nine hundred ninety-six thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 11 12 22 24 31 33 44 62 66 88 93 124 132 186 248 264 341 372 682 744 1023 1364 2046 2728 4092 8184 34457 68914 103371 137828 206742 275656 379027 413484 758054 826968 1068167 1137081 1516108 2136334 2274162 3032216 3204501 4272668 4548324 6409002 8545336 9096648 11749837 12818004 23499674 25636008 35249511 46999348 70499022 93998696 140998044 281996088