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29247949 = 82935281
BaseRepresentation
bin110111110010…
…0100111001101
32001000221122101
41233210213031
524441413244
62522515101
7503413663
oct157444715
961027571
1029247949
1115567465
129965a91
1360a08a3
143c54c33
15287b0d4
hex1be49cd

29247949 has 4 divisors (see below), whose sum is σ = 29284060. Its totient is φ = 29211840.

The previous prime is 29247947. The next prime is 29247989. The reversal of 29247949 is 94974292.

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 10843849 + 18404100 = 3293^2 + 4290^2 .

It is a cyclic number.

It is not a de Polignac number, because 29247949 - 21 = 29247947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29247899 and 29247908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29247943) 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, 16812 + ... + 18469.

It is an arithmetic number, because the mean of its divisors is an integer number (7321015).

Almost surely, 229247949 is an apocalyptic number.

It is an amenable number.

29247949 is a deficient number, since it is larger than the sum of its proper divisors (36111).

29247949 is an equidigital number, since it uses as much as digits as its factorization.

29247949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36110.

The product of its digits is 326592, while the sum is 46.

The square root of 29247949 is about 5408.1372948549. The cubic root of 29247949 is about 308.1048056496.

The spelling of 29247949 in words is "twenty-nine million, two hundred forty-seven thousand, nine hundred forty-nine".

Divisors: 1 829 35281 29247949