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29387443 = 1072691021
BaseRepresentation
bin111000000011…
…0101010110011
32001022000222211
41300012222303
530010344233
62525512551
7504534451
oct160065263
961260884
1029387443
1115652248
129a12757
13611c227
143c8d9d1
1528a75cd
hex1c06ab3

29387443 has 8 divisors (see below), whose sum is σ = 29801520. Its totient is φ = 28976160.

The previous prime is 29387437. The next prime is 29387461. The reversal of 29387443 is 34478392.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-29387443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29387396 and 29387405.

It is not an unprimeable number, because it can be changed into a prime (29385443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28273 + ... + 29293.

It is an arithmetic number, because the mean of its divisors is an integer number (3725190).

Almost surely, 229387443 is an apocalyptic number.

29387443 is a deficient number, since it is larger than the sum of its proper divisors (414077).

29387443 is a wasteful number, since it uses less digits than its factorization.

29387443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397.

The product of its digits is 145152, while the sum is 40.

The square root of 29387443 is about 5421.0186312168. The cubic root of 29387443 is about 308.5938499144.

The spelling of 29387443 in words is "twenty-nine million, three hundred eighty-seven thousand, four hundred forty-three".

Divisors: 1 107 269 1021 28783 109247 274649 29387443