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220880456 = 23173152391
BaseRepresentation
bin11010010101001…
…01111001001000
3120101121220000122
431022211321020
5423021133311
633530122412
75321311226
oct1512457110
9511556018
10220880456
11103754835
1261b80408
13369b83c4
1421499b16
15145d10db
hexd2a5e48

220880456 has 32 divisors (see below), whose sum is σ = 452666880. Its totient is φ = 100588800.

The previous prime is 220880419. The next prime is 220880479. The reversal of 220880456 is 654088022.

220880456 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 21980 + ... + 30411.

It is an arithmetic number, because the mean of its divisors is an integer number (14145840).

Almost surely, 2220880456 is an apocalyptic number.

It is an amenable number.

220880456 is an abundant number, since it is smaller than the sum of its proper divisors (231786424).

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

220880456 is a wasteful number, since it uses less digits than its factorization.

220880456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52445 (or 52441 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 220880456 is about 14862.0475036248. The cubic root of 220880456 is about 604.4853269257.

The spelling of 220880456 in words is "two hundred twenty million, eight hundred eighty thousand, four hundred fifty-six".

Divisors: 1 2 4 8 17 31 34 62 68 124 136 248 527 1054 2108 4216 52391 104782 209564 419128 890647 1624121 1781294 3248242 3562588 6496484 7125176 12992968 27610057 55220114 110440228 220880456