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220103012 = 22178094001
BaseRepresentation
bin11010001111010…
…00000101100100
3120100011101120102
431013220011210
5422321244022
633501323232
75311562513
oct1507500544
9510141512
10220103012
11103273718
1261866518
13367a558c
142133667a
15144caa92
hexd1e8164

220103012 has 24 divisors (see below), whose sum is σ = 408444120. Its totient is φ = 103424000.

The previous prime is 220102999. The next prime is 220103017. The reversal of 220103012 is 210301022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 44169316 + 175933696 = 6646^2 + 13264^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220102984 and 220103002.

It is not an unprimeable number, because it can be changed into a prime (220103017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53012 + ... + 57012.

It is an arithmetic number, because the mean of its divisors is an integer number (17018505).

Almost surely, 2220103012 is an apocalyptic number.

It is an amenable number.

220103012 is a deficient number, since it is larger than the sum of its proper divisors (188341108).

220103012 is a wasteful number, since it uses less digits than its factorization.

220103012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4831 (or 4829 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 220103012 is about 14835.8691016064. The cubic root of 220103012 is about 603.7752807878.

Adding to 220103012 its reverse (210301022), we get a palindrome (430404034).

The spelling of 220103012 in words is "two hundred twenty million, one hundred three thousand, twelve".

Divisors: 1 2 4 17 34 68 809 1618 3236 4001 8002 13753 16004 27506 55012 68017 136034 272068 3236809 6473618 12947236 55025753 110051506 220103012