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2103033220 = 225105151661
BaseRepresentation
bin111110101011001…
…1011110110000100
312102120020011020021
41331112123312010
513301334030340
6544403144524
7103054326121
oct17526336604
95376204207
102103033220
1198a11aa92
124a8375144
13276910672
1415d439748
15c4965e4a
hex7d59bd84

2103033220 has 12 divisors (see below), whose sum is σ = 4416369804. Its totient is φ = 841213280.

The previous prime is 2103033217. The next prime is 2103033227. The reversal of 2103033220 is 223303012.

It can be written as a sum of positive squares in 2 ways, for example, as 913611076 + 1189422144 = 30226^2 + 34488^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2103033194 and 2103033203.

It is not an unprimeable number, because it can be changed into a prime (2103033227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52575811 + ... + 52575850.

It is an arithmetic number, because the mean of its divisors is an integer number (368030817).

Almost surely, 22103033220 is an apocalyptic number.

2103033220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2103033220 is an abundant number, since it is smaller than the sum of its proper divisors (2313336584).

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

2103033220 is a wasteful number, since it uses less digits than its factorization.

2103033220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105151670 (or 105151668 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 2103033220 is about 45858.8401510548. The cubic root of 2103033220 is about 1281.1954204948.

Adding to 2103033220 its reverse (223303012), we get a palindrome (2326336232).

The spelling of 2103033220 in words is "two billion, one hundred three million, thirty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 105151661 210303322 420606644 525758305 1051516610 2103033220