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210231412 = 22229322921
BaseRepresentation
bin11001000011111…
…10000001110100
3112122120212021121
430201332001310
5412304401122
632505553324
75131636366
oct1441760164
9478525247
10210231412
11a8740a76
125a4a5844
133472a2b1
141dcc6d36
15136cabc7
hexc87e074

210231412 has 12 divisors (see below), whose sum is σ = 368081476. Its totient is φ = 105065280.

The previous prime is 210231407. The next prime is 210231419. The reversal of 210231412 is 214132012.

It can be written as a sum of positive squares in 2 ways, for example, as 79495056 + 130736356 = 8916^2 + 11434^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210231419) 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 3 ways as a sum of consecutive naturals, for example, 2289 + ... + 20632.

Almost surely, 2210231412 is an apocalyptic number.

It is an amenable number.

210231412 is a deficient number, since it is larger than the sum of its proper divisors (157850064).

210231412 is a wasteful number, since it uses less digits than its factorization.

210231412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25218 (or 25216 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 210231412 is about 14499.3590203153. The cubic root of 210231412 is about 594.6104476459.

Adding to 210231412 its reverse (214132012), we get a palindrome (424363424).

The spelling of 210231412 in words is "two hundred ten million, two hundred thirty-one thousand, four hundred twelve".

Divisors: 1 2 4 2293 4586 9172 22921 45842 91684 52557853 105115706 210231412