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220320108 = 223312716063
BaseRepresentation
bin11010010000111…
…01000101101100
3120100120102101000
431020131011230
5422400220413
633510120300
75313455451
oct1510350554
9510512330
10220320108
11103401838
1261950090
1336850338
1421391828
1514520073
hexd21d16c

220320108 has 48 divisors (see below), whose sum is σ = 575733760. Its totient is φ = 72857232.

The previous prime is 220320103. The next prime is 220320109. The reversal of 220320108 is 801023022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (220320103) 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 15 ways as a sum of consecutive naturals, for example, 5685 + ... + 21747.

Almost surely, 2220320108 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 220320108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287866880).

220320108 is an abundant number, since it is smaller than the sum of its proper divisors (355413652).

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

220320108 is a wasteful number, since it uses less digits than its factorization.

220320108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16203 (or 16195 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 220320108 is about 14843.1838902575. The cubic root of 220320108 is about 603.9737244246.

The spelling of 220320108 in words is "two hundred twenty million, three hundred twenty thousand, one hundred eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 127 254 381 508 762 1143 1524 2286 3429 4572 6858 13716 16063 32126 48189 64252 96378 144567 192756 289134 433701 578268 867402 1734804 2040001 4080002 6120003 8160004 12240006 18360009 24480012 36720018 55080027 73440036 110160054 220320108