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29550857 = 74221551
BaseRepresentation
bin111000010111…
…0100100001001
32001121100011012
41300232210021
530031111412
62533213305
7506115050
oct160564411
961540135
1029550857
1115753aa6
129a91235
13617871b
143cd3397
1528dac22
hex1c2e909

29550857 has 4 divisors (see below), whose sum is σ = 33772416. Its totient is φ = 25329300.

The previous prime is 29550841. The next prime is 29550863. The reversal of 29550857 is 75805592.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29550857 - 24 = 29550841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29550887) 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 3 ways as a sum of consecutive naturals, for example, 2110769 + ... + 2110782.

It is an arithmetic number, because the mean of its divisors is an integer number (8443104).

Almost surely, 229550857 is an apocalyptic number.

It is an amenable number.

29550857 is a deficient number, since it is larger than the sum of its proper divisors (4221559).

29550857 is an equidigital number, since it uses as much as digits as its factorization.

29550857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4221558.

The product of its (nonzero) digits is 126000, while the sum is 41.

The square root of 29550857 is about 5436.0699958702. The cubic root of 29550857 is about 309.1647895821.

The spelling of 29550857 in words is "twenty-nine million, five hundred fifty thousand, eight hundred fifty-seven".

Divisors: 1 7 4221551 29550857