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214302812 = 2273373091
BaseRepresentation
bin11001100011000…
…00000001011100
3112221020201012012
430301200001130
5414330142222
633133130352
75211354353
oct1461400134
9487221165
10214302812
11aaa71969
125b9299b8
13355244c9
142066699a
1513c321e2
hexcc6005c

214302812 has 12 divisors (see below), whose sum is σ = 375546696. Its totient is φ = 107003760.

The previous prime is 214302811. The next prime is 214302827. The reversal of 214302812 is 218203412.

It is a happy number.

It is a super-2 number, since 2×2143028122 = 91851390462214688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214302811) 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, 33614 + ... + 39477.

It is an arithmetic number, because the mean of its divisors is an integer number (31295558).

Almost surely, 2214302812 is an apocalyptic number.

It is an amenable number.

214302812 is a deficient number, since it is larger than the sum of its proper divisors (161243884).

214302812 is a wasteful number, since it uses less digits than its factorization.

214302812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73828 (or 73826 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 214302812 is about 14639.0850807009. The cubic root of 214302812 is about 598.4243957032.

It can be divided in two parts, 21430 and 2812, that added together give a palindrome (24242).

The spelling of 214302812 in words is "two hundred fourteen million, three hundred two thousand, eight hundred twelve".

Divisors: 1 2 4 733 1466 2932 73091 146182 292364 53575703 107151406 214302812