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20122203 = 317223209
BaseRepresentation
bin100110011000…
…0101001011011
31101212022110210
41030300221123
520122402303
61555142203
7333015213
oct114605133
941768423
1020122203
11103a4122
1268a4963
134226c3a
14295b243
151b77203
hex1330a5b

20122203 has 12 divisors (see below), whose sum is σ = 28501880. Its totient is φ = 12625152.

The previous prime is 20122199. The next prime is 20122213. The reversal of 20122203 is 30222102.

It is not a de Polignac number, because 20122203 - 22 = 20122199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20122213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10738 + ... + 12471.

Almost surely, 220122203 is an apocalyptic number.

20122203 is a deficient number, since it is larger than the sum of its proper divisors (8379677).

20122203 is a wasteful number, since it uses less digits than its factorization.

20122203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23246 (or 23229 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20122203 is about 4485.7778589672. Note that the first 3 decimals coincide. The cubic root of 20122203 is about 271.9934894275.

Adding to 20122203 its reverse (30222102), we get a palindrome (50344305).

The spelling of 20122203 in words is "twenty million, one hundred twenty-two thousand, two hundred three".

Divisors: 1 3 17 51 289 867 23209 69627 394553 1183659 6707401 20122203