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212872533 = 3411730671
BaseRepresentation
bin11001011000000…
…10110101010101
3112211120001012220
430230002311111
5413443410113
633042332553
75163246426
oct1454026525
9484501186
10212872533
11aa185315
125b35a159
13351434a3
14203b364d
1513a4d523
hexcb02d55

212872533 has 8 divisors (see below), whose sum is σ = 290752896. Its totient is φ = 138453600.

The previous prime is 212872529. The next prime is 212872537. The reversal of 212872533 is 335278212.

It is an interprime number because it is at equal distance from previous prime (212872529) and next prime (212872537).

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

It is not a de Polignac number, because 212872533 - 22 = 212872529 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 212872494 and 212872503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212872537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 865213 + ... + 865458.

It is an arithmetic number, because the mean of its divisors is an integer number (36344112).

Almost surely, 2212872533 is an apocalyptic number.

It is an amenable number.

212872533 is a deficient number, since it is larger than the sum of its proper divisors (77880363).

212872533 is a wasteful number, since it uses less digits than its factorization.

212872533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730715.

The product of its digits is 20160, while the sum is 33.

The square root of 212872533 is about 14590.1519183318. The cubic root of 212872533 is about 597.0901075800.

The spelling of 212872533 in words is "two hundred twelve million, eight hundred seventy-two thousand, five hundred thirty-three".

Divisors: 1 3 41 123 1730671 5192013 70957511 212872533