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29772249 = 313763391
BaseRepresentation
bin111000110010…
…0100111011001
32002000120211220
41301210213121
530110202444
62542042253
7511026363
oct161444731
962016756
1029772249
1115895371
129b79389
136225420
143d4dd33
152931619
hex1c649d9

29772249 has 8 divisors (see below), whose sum is σ = 42749952. Its totient is φ = 18321360.

The previous prime is 29772203. The next prime is 29772251. The reversal of 29772249 is 94227792.

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

It is not a de Polignac number, because 29772249 - 213 = 29764057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29772249.

It is not an unprimeable number, because it can be changed into a prime (29772269) 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 7 ways as a sum of consecutive naturals, for example, 381657 + ... + 381734.

It is an arithmetic number, because the mean of its divisors is an integer number (5343744).

Almost surely, 229772249 is an apocalyptic number.

It is an amenable number.

29772249 is a deficient number, since it is larger than the sum of its proper divisors (12977703).

29772249 is a wasteful number, since it uses less digits than its factorization.

29772249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763407.

The product of its digits is 127008, while the sum is 42.

The square root of 29772249 is about 5456.3952386168. The cubic root of 29772249 is about 309.9349464605.

The spelling of 29772249 in words is "twenty-nine million, seven hundred seventy-two thousand, two hundred forty-nine".

Divisors: 1 3 13 39 763391 2290173 9924083 29772249