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220307382 = 23264718917
BaseRepresentation
bin11010010000110…
…01111110110110
3120100112202220200
431020121332312
5422344314012
633505541330
75313403401
oct1510317666
9510482820
10220307382
111033a3219
1261944846
13368475c9
142138ad38
151451b3dc
hexd219fb6

220307382 has 24 divisors (see below), whose sum is σ = 478095696. Its totient is φ = 73318416.

The previous prime is 220307341. The next prime is 220307393. The reversal of 220307382 is 283703022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2188 + ... + 21104.

It is an arithmetic number, because the mean of its divisors is an integer number (19920654).

Almost surely, 2220307382 is an apocalyptic number.

220307382 is an abundant number, since it is smaller than the sum of its proper divisors (257788314).

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

220307382 is a wasteful number, since it uses less digits than its factorization.

220307382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19572 (or 19569 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 220307382 is about 14842.7552024548. The cubic root of 220307382 is about 603.9620954094.

The spelling of 220307382 in words is "two hundred twenty million, three hundred seven thousand, three hundred eighty-two".

Divisors: 1 2 3 6 9 18 647 1294 1941 3882 5823 11646 18917 37834 56751 113502 170253 340506 12239299 24478598 36717897 73435794 110153691 220307382