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220110020 = 22513846577
BaseRepresentation
bin11010001111010…
…01110011000100
3120100011202011222
431013221303010
5422322010040
633501415512
75311622114
oct1507516304
9510152158
10220110020
11103278a09
126186a598
13367a8820
1421339044
15144ccbb5
hexd1e9cc4

220110020 has 24 divisors (see below), whose sum is σ = 497787864. Its totient is φ = 81271296.

The previous prime is 220110001. The next prime is 220110031. The reversal of 220110020 is 20011022.

220110020 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6190144 + 213919876 = 2488^2 + 14626^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423029 + ... + 423548.

It is an arithmetic number, because the mean of its divisors is an integer number (20741161).

Almost surely, 2220110020 is an apocalyptic number.

220110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220110020 is an abundant number, since it is smaller than the sum of its proper divisors (277677844).

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

220110020 is a wasteful number, since it uses less digits than its factorization.

220110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846599 (or 846597 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 220110020 is about 14836.1052840697. The cubic root of 220110020 is about 603.7816887151.

Adding to 220110020 its reverse (20011022), we get a palindrome (240121042).

It can be divided in two parts, 2201 and 10020, that added together give a palindrome (12221).

The spelling of 220110020 in words is "two hundred twenty million, one hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 846577 1693154 3386308 4232885 8465770 11005501 16931540 22011002 44022004 55027505 110055010 220110020