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212223103 = 1943673877
BaseRepresentation
bin11001010011001…
…00010001111111
3112210100001100221
430221210101333
5413312114403
633020402211
75154603151
oct1451442177
9483301327
10212223103
11a98813a4
125b0a6367
1334c76a01
1420284ad1
1513970dbd
hexca6447f

212223103 has 16 divisors (see below), whose sum is σ = 232059520. Its totient is φ = 193396896.

The previous prime is 212223097. The next prime is 212223133. The reversal of 212223103 is 301322212.

It is not a de Polignac number, because 212223103 - 25 = 212223071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212223133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52801 + ... + 56677.

It is an arithmetic number, because the mean of its divisors is an integer number (14503720).

Almost surely, 2212223103 is an apocalyptic number.

212223103 is a deficient number, since it is larger than the sum of its proper divisors (19836417).

212223103 is a wasteful number, since it uses less digits than its factorization.

212223103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4006.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 212223103 is about 14567.8791524367. The cubic root of 212223103 is about 596.4822896427.

Adding to 212223103 its reverse (301322212), we get a palindrome (513545315).

The spelling of 212223103 in words is "two hundred twelve million, two hundred twenty-three thousand, one hundred three".

Divisors: 1 19 43 67 817 1273 2881 3877 54739 73663 166711 259759 3167509 4935421 11169637 212223103