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220387896 = 233216718329
BaseRepresentation
bin11010010001011…
…01101000111000
3120100200212100200
431020231220320
5422404403041
633511402200
75314160211
oct1510555070
9510625320
10220387896
11103448763
1261983360
1336875151
14213ac408
15145351b6
hexd22da38

220387896 has 48 divisors (see below), whose sum is σ = 600490800. Its totient is φ = 73018752.

The previous prime is 220387891. The next prime is 220387919. The reversal of 220387896 is 698783022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220387891) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2860 + ... + 21188.

It is an arithmetic number, because the mean of its divisors is an integer number (12510225).

Almost surely, 2220387896 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 220387896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300245400).

220387896 is an abundant number, since it is smaller than the sum of its proper divisors (380102904).

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

220387896 is a wasteful number, since it uses less digits than its factorization.

220387896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18508 (or 18501 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 220387896 is about 14845.4671869901. The cubic root of 220387896 is about 604.0356615349.

The spelling of 220387896 in words is "two hundred twenty million, three hundred eighty-seven thousand, eight hundred ninety-six".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 167 334 501 668 1002 1336 1503 2004 3006 4008 6012 12024 18329 36658 54987 73316 109974 146632 164961 219948 329922 439896 659844 1319688 3060943 6121886 9182829 12243772 18365658 24487544 27548487 36731316 55096974 73462632 110193948 220387896