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103240220 = 2255162011
BaseRepresentation
bin1100010011101…
…01001000011100
321012021010221212
412021311020130
5202412141340
614124443552
72362345616
oct611651034
9235233855
10103240220
11533049a6
122a6a95b8
13185095b5
14d9d5db6
1590e4a65
hex627521c

103240220 has 12 divisors (see below), whose sum is σ = 216804504. Its totient is φ = 41296080.

The previous prime is 103240213. The next prime is 103240229. The reversal of 103240220 is 22042301.

It is a junction number, because it is equal to n+sod(n) for n = 103240195 and 103240204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103240229) 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, 2580986 + ... + 2581025.

It is an arithmetic number, because the mean of its divisors is an integer number (18067042).

Almost surely, 2103240220 is an apocalyptic number.

103240220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103240220 is an abundant number, since it is smaller than the sum of its proper divisors (113564284).

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

103240220 is a wasteful number, since it uses less digits than its factorization.

103240220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5162020 (or 5162018 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 103240220 is about 10160.7194627152. The cubic root of 103240220 is about 469.1189469823.

Adding to 103240220 its reverse (22042301), we get a palindrome (125282521).

The spelling of 103240220 in words is "one hundred three million, two hundred forty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 5162011 10324022 20648044 25810055 51620110 103240220