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29212849 = 93731177
BaseRepresentation
bin110111101110…
…0000010110001
32000222011111101
41233130002301
524434302344
62522044401
7503206441
oct157340261
960864441
1029212849
1115543056
129949701
13608a913
143c46121
1528709d4
hex1bdc0b1

29212849 has 4 divisors (see below), whose sum is σ = 29244964. Its totient is φ = 29180736.

The previous prime is 29212837. The next prime is 29212853. The reversal of 29212849 is 94821292.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10679824 + 18533025 = 3268^2 + 4305^2 .

It is a cyclic number.

It is not a de Polignac number, because 29212849 - 217 = 29081777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29212349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14652 + ... + 16525.

It is an arithmetic number, because the mean of its divisors is an integer number (7311241).

Almost surely, 229212849 is an apocalyptic number.

It is an amenable number.

29212849 is a deficient number, since it is larger than the sum of its proper divisors (32115).

29212849 is an equidigital number, since it uses as much as digits as its factorization.

29212849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32114.

The product of its digits is 20736, while the sum is 37.

The square root of 29212849 is about 5404.8912107461. The cubic root of 29212849 is about 307.9815057485.

It can be divided in two parts, 29 and 212849, that added together give a triangular number (212878 = T652).

The spelling of 29212849 in words is "twenty-nine million, two hundred twelve thousand, eight hundred forty-nine".

Divisors: 1 937 31177 29212849