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212065763 = 7132179261
BaseRepresentation
bin11001010001111…
…01110111100011
3112210001001112112
430220331313203
5413242101023
633013145535
75153346350
oct1450756743
9483031475
10212065763
11a9784168
125b02b2ab
1334c20200
1420243627
151393e478
hexca3dde3

212065763 has 12 divisors (see below), whose sum is σ = 262439568. Its totient is φ = 167787360.

The previous prime is 212065753. The next prime is 212065831. The reversal of 212065763 is 367560212.

It is not a de Polignac number, because 212065763 - 214 = 212049379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212065703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88448 + ... + 90813.

It is an arithmetic number, because the mean of its divisors is an integer number (21869964).

Almost surely, 2212065763 is an apocalyptic number.

212065763 is a deficient number, since it is larger than the sum of its proper divisors (50373805).

212065763 is a wasteful number, since it uses less digits than its factorization.

212065763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179294 (or 179281 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 212065763 is about 14562.4779141463. The cubic root of 212065763 is about 596.3348446112.

The spelling of 212065763 in words is "two hundred twelve million, sixty-five thousand, seven hundred sixty-three".

Divisors: 1 7 13 91 169 1183 179261 1254827 2330393 16312751 30295109 212065763