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143812212 = 22311984351
BaseRepresentation
bin10001001001001…
…10011001110100
3101000121102021020
420210212121310
5243303442322
622134221140
73364245405
oct1044463164
9330542236
10143812212
11741a6275
12401b47b0
1323a435ab
14151579ac
15c95b05c
hex8926674

143812212 has 12 divisors (see below), whose sum is σ = 335561856. Its totient is φ = 47937400.

The previous prime is 143812199. The next prime is 143812219. The reversal of 143812212 is 212218341.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143812219) 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, 5992164 + ... + 5992187.

It is an arithmetic number, because the mean of its divisors is an integer number (27963488).

Almost surely, 2143812212 is an apocalyptic number.

143812212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

143812212 is an abundant number, since it is smaller than the sum of its proper divisors (191749644).

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

143812212 is a wasteful number, since it uses less digits than its factorization.

143812212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11984358 (or 11984356 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

The square root of 143812212 is about 11992.1729473853. The cubic root of 143812212 is about 523.9203353824.

The spelling of 143812212 in words is "one hundred forty-three million, eight hundred twelve thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 11984351 23968702 35953053 47937404 71906106 143812212