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212001033 = 31731134093
BaseRepresentation
bin11001010001011…
…10000100001001
3112202220202202010
430220232010021
5413233013113
633011530133
75152656546
oct1450560411
9482822663
10212001033
11a973a572
125abb9949
1334bc98ca
1420227bcd
151392a1c3
hexca2e109

212001033 has 16 divisors (see below), whose sum is σ = 308952576. Its totient is φ = 128728320.

The previous prime is 212001019. The next prime is 212001059. The reversal of 212001033 is 330100212.

It is a happy number.

It is not a de Polignac number, because 212001033 - 24 = 212001017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212001233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65466 + ... + 68627.

It is an arithmetic number, because the mean of its divisors is an integer number (19309536).

Almost surely, 2212001033 is an apocalyptic number.

It is an amenable number.

212001033 is a deficient number, since it is larger than the sum of its proper divisors (96951543).

212001033 is a wasteful number, since it uses less digits than its factorization.

212001033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134144.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 212001033 is about 14560.2552518835. The cubic root of 212001033 is about 596.2741642480.

Adding to 212001033 its reverse (330100212), we get a palindrome (542101245).

The spelling of 212001033 in words is "two hundred twelve million, one thousand, thirty-three".

Divisors: 1 3 17 31 51 93 527 1581 134093 402279 2279581 4156883 6838743 12470649 70667011 212001033