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212064260 = 22510603213
BaseRepresentation
bin11001010001111…
…01100000000100
3112210000222110212
430220331200010
5413242024020
633013134552
75153342102
oct1450754004
9483028425
10212064260
11a9783021
125b02a458
1334c1c615
1420242c72
151393dcc5
hexca3d804

212064260 has 12 divisors (see below), whose sum is σ = 445334988. Its totient is φ = 84825696.

The previous prime is 212064247. The next prime is 212064271. The reversal of 212064260 is 62460212.

It can be written as a sum of positive squares in 2 ways, for example, as 113379904 + 98684356 = 10648^2 + 9934^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5301587 + ... + 5301626.

It is an arithmetic number, because the mean of its divisors is an integer number (37111249).

Almost surely, 2212064260 is an apocalyptic number.

212064260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212064260 is an abundant number, since it is smaller than the sum of its proper divisors (233270728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212064260 is a wasteful number, since it uses less digits than its factorization.

212064260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10603222 (or 10603220 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 212064260 is about 14562.4263088264. The cubic root of 212064260 is about 596.3334357819. Note that the first 3 decimals are identical.

The spelling of 212064260 in words is "two hundred twelve million, sixty-four thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 10603213 21206426 42412852 53016065 106032130 212064260