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212653033 = 1240917137
BaseRepresentation
bin11001010110011…
…01001111101001
3112211010220010021
430223031033221
5413414344113
633033520441
75161343455
oct1453151751
9484126107
10212653033
11aa04540a
125b273121
13350975c8
1420357665
1513a0848d
hexcacd3e9

212653033 has 4 divisors (see below), whose sum is σ = 212682580. Its totient is φ = 212623488.

The previous prime is 212652989. The next prime is 212653037. The reversal of 212653033 is 330356212.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3069504 + 209583529 = 1752^2 + 14477^2 .

It is a cyclic number.

It is not a de Polignac number, because 212653033 - 221 = 210555881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212652989 and 212653007.

It is not an unprimeable number, because it can be changed into a prime (212653037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3841 + ... + 20977.

It is an arithmetic number, because the mean of its divisors is an integer number (53170645).

Almost surely, 2212653033 is an apocalyptic number.

It is an amenable number.

212653033 is a deficient number, since it is larger than the sum of its proper divisors (29547).

212653033 is a wasteful number, since it uses less digits than its factorization.

212653033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29546.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 212653033 is about 14582.6277810277. The cubic root of 212653033 is about 596.8848104635.

The spelling of 212653033 in words is "two hundred twelve million, six hundred fifty-three thousand, thirty-three".

Divisors: 1 12409 17137 212653033