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212443043 = 1077612609
BaseRepresentation
bin11001010100110…
…01111110100011
3112210202020001212
430222121332203
5413341134133
633025220335
75156510321
oct1452317643
9483666055
10212443043
11a9a1166a
125b1916ab
1335022b57
1420300d11
15139b6148
hexca99fa3

212443043 has 8 divisors (see below), whose sum is σ = 214792560. Its totient is φ = 210100480.

The previous prime is 212443001. The next prime is 212443057. The reversal of 212443043 is 340344212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212443043 - 28 = 212442787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212443073) 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, 80123 + ... + 82731.

It is an arithmetic number, because the mean of its divisors is an integer number (26849070).

Almost surely, 2212443043 is an apocalyptic number.

212443043 is a deficient number, since it is larger than the sum of its proper divisors (2349517).

212443043 is a wasteful number, since it uses less digits than its factorization.

212443043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3477.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 212443043 is about 14575.4259972050. The cubic root of 212443043 is about 596.6882757312.

Adding to 212443043 its reverse (340344212), we get a palindrome (552787255).

The spelling of 212443043 in words is "two hundred twelve million, four hundred forty-three thousand, forty-three".

Divisors: 1 107 761 2609 81427 279163 1985449 212443043