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143133229 = 1031389643
BaseRepresentation
bin10001000100000…
…00101000101101
3100222022220212201
420202000220231
5243120230404
622111501501
73355420021
oct1042005055
9328286781
10143133229
1173882128
123bb27891
1323866525
141501c381
15c874ca4
hex8880a2d

143133229 has 4 divisors (see below), whose sum is σ = 144522976. Its totient is φ = 141743484.

The previous prime is 143133203. The next prime is 143133307. The reversal of 143133229 is 922331341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 143133229 - 27 = 143133101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143133197 and 143133206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143133329) 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, 694719 + ... + 694924.

It is an arithmetic number, because the mean of its divisors is an integer number (36130744).

Almost surely, 2143133229 is an apocalyptic number.

It is an amenable number.

143133229 is a deficient number, since it is larger than the sum of its proper divisors (1389747).

143133229 is a wasteful number, since it uses less digits than its factorization.

143133229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389746.

The product of its digits is 3888, while the sum is 28.

The square root of 143133229 is about 11963.8300305546. The cubic root of 143133229 is about 523.0945030651.

The spelling of 143133229 in words is "one hundred forty-three million, one hundred thirty-three thousand, two hundred twenty-nine".

Divisors: 1 103 1389643 143133229