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220103140 = 22511005157
BaseRepresentation
bin11010001111010…
…00000111100100
3120100011101202011
431013220013210
5422321300030
633501324004
75311563055
oct1507500744
9510141664
10220103140
11103273824
1261866604
13367a565a
142133672c
15144cab2a
hexd1e81e4

220103140 has 12 divisors (see below), whose sum is σ = 462216636. Its totient is φ = 88041248.

The previous prime is 220103137. The next prime is 220103179. The reversal of 220103140 is 41301022.

It can be written as a sum of positive squares in 2 ways, for example, as 164660224 + 55442916 = 12832^2 + 7446^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220103140.

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 3 ways as a sum of consecutive naturals, for example, 5502559 + ... + 5502598.

It is an arithmetic number, because the mean of its divisors is an integer number (38518053).

Almost surely, 2220103140 is an apocalyptic number.

220103140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220103140 is an abundant number, since it is smaller than the sum of its proper divisors (242113496).

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

220103140 is a wasteful number, since it uses less digits than its factorization.

220103140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11005166 (or 11005164 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 220103140 is about 14835.8734154751. The cubic root of 220103140 is about 603.7753978288.

Adding to 220103140 its reverse (41301022), we get a palindrome (261404162).

The spelling of 220103140 in words is "two hundred twenty million, one hundred three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 11005157 22010314 44020628 55025785 110051570 220103140