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29427293 = 72600557
BaseRepresentation
bin111000001000…
…0011001011101
32001101001122202
41300100121131
530013133133
62530421245
7505061600
oct160203135
961331582
1029427293
111567a185
129a31825
1361343cc
143ca0337
1528b42e8
hex1c1065d

29427293 has 6 divisors (see below), whose sum is σ = 34231806. Its totient is φ = 25223352.

The previous prime is 29427287. The next prime is 29427301. The reversal of 29427293 is 39272492.

It can be written as a sum of positive squares in only one way, i.e., 27857284 + 1570009 = 5278^2 + 1253^2 .

It is not a de Polignac number, because 29427293 - 28 = 29427037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29427283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 300230 + ... + 300327.

It is an arithmetic number, because the mean of its divisors is an integer number (5705301).

Almost surely, 229427293 is an apocalyptic number.

It is an amenable number.

29427293 is a deficient number, since it is larger than the sum of its proper divisors (4804513).

29427293 is an equidigital number, since it uses as much as digits as its factorization.

29427293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600571 (or 600564 counting only the distinct ones).

The product of its digits is 54432, while the sum is 38.

The square root of 29427293 is about 5424.6928945333. The cubic root of 29427293 is about 308.7332735288.

The spelling of 29427293 in words is "twenty-nine million, four hundred twenty-seven thousand, two hundred ninety-three".

Divisors: 1 7 49 600557 4203899 29427293