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220772046 = 231131310687
BaseRepresentation
bin11010010100010…
…11011011001110
3120101102101022110
431022023123032
5423004201141
633523524450
75320350165
oct1512133316
9511371273
10220772046
11103690340
1261b29726
133697ac61
142146c3dc
15145ade16
hexd28b6ce

220772046 has 32 divisors (see below), whose sum is σ = 483268608. Its totient is φ = 66680640.

The previous prime is 220772033. The next prime is 220772051. The reversal of 220772046 is 640277022.

It is a super-2 number, since 2×2207720462 = 97480592590052232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15315 + ... + 26001.

It is an arithmetic number, because the mean of its divisors is an integer number (15102144).

Almost surely, 2220772046 is an apocalyptic number.

220772046 is an abundant number, since it is smaller than the sum of its proper divisors (262496562).

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

220772046 is a wasteful number, since it uses less digits than its factorization.

220772046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11016.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 220772046 is about 14858.3998465514. The cubic root of 220772046 is about 604.3864152343.

The spelling of 220772046 in words is "two hundred twenty million, seven hundred seventy-two thousand, forty-six".

Divisors: 1 2 3 6 11 22 33 66 313 626 939 1878 3443 6886 10329 10687 20658 21374 32061 64122 117557 235114 352671 705342 3345031 6690062 10035093 20070186 36795341 73590682 110386023 220772046