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29056805 = 528120681
BaseRepresentation
bin110111011010…
…1111100100101
32000200020102222
41232311330211
524414304210
62514442125
7501656501
oct156657445
960606388
1029056805
1115446898
129893345
13603489b
143c05301
15283e655
hex1bb5f25

29056805 has 8 divisors (see below), whose sum is σ = 34993944. Its totient is φ = 23161600.

The previous prime is 29056787. The next prime is 29056817. The reversal of 29056805 is 50865092.

It can be written as a sum of positive squares in 4 ways, for example, as 850084 + 28206721 = 922^2 + 5311^2 .

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

It is not a de Polignac number, because 29056805 - 222 = 24862501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8936 + ... + 11745.

It is an arithmetic number, because the mean of its divisors is an integer number (4374243).

Almost surely, 229056805 is an apocalyptic number.

It is an amenable number.

29056805 is a deficient number, since it is larger than the sum of its proper divisors (5937139).

29056805 is a wasteful number, since it uses less digits than its factorization.

29056805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20967.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 29056805 is about 5390.4364387311. The cubic root of 29056805 is about 307.4321528326.

The spelling of 29056805 in words is "twenty-nine million, fifty-six thousand, eight hundred five".

Divisors: 1 5 281 1405 20681 103405 5811361 29056805